Insect biological flow measuring and calculating method based on insect radar

A biological flow and insect technology, applied in the field of insect biological flow measurement based on insect radar, can solve problems such as measuring insect biological flow, and achieve the effect of saving labor costs

Pending Publication Date: 2021-06-25
INST OF PLANT PROTECTION HENAN ACAD OF AGRI SCI
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a method for measuring and calculating insect biological flow based on insect radar to solve the current technical problem that it is impossible to quickly, accurately and low-cost measure insect biological flow in a large area

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Insect biological flow measuring and calculating method based on insect radar
  • Insect biological flow measuring and calculating method based on insect radar
  • Insect biological flow measuring and calculating method based on insect radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1: Construction of insect biological flux measurement method based on rotating polarization vertical insect radar

[0050] Step (1): Using the rotary polarization vertical insect radar (KC-08XVSH), it is necessary to obtain σ, α from the radar signal 0 、α 2 and alpha 4 Four reflection parameters are calculated.

[0051] Step (2): Estimation method of insect mass,

[0052] σ xx = α 0 +α 2 +α 4

[0053] σ yy = α 0 -α 2 +α 4 ,

[0054] where α 0 、α 2 and alpha 4 It is the original data obtained from the radar signal by the three parameters generated by the Fourier transform of the radar signal.

[0055] When σ xx -1 cm 2 , use the following formula to calculate body weight m (mg):

[0056] m=(σ XX ×10 5 / 6.5) 1 / 2 ;

[0057] When σ xx >10 -1 cm 2 , use the following formula to calculate body weight m (mg):

[0058] log 10 (m)=2.54+0.766×log 10 (σ yy )+0.179×{log 10 (σ yy )} 2 .

[0059] Step (3): the calculation of the flight speed ...

Embodiment 2

[0091] Embodiment two: comparative verification test

[0092] Test site: Henan Modern Agriculture Development Base, Yuanyang County, Xinxiang

[0093] Time: From April 1st to October 30th, 2015

[0094] Control test setup: use sounding light insect trap (see CN201690925U) to trap insects in the air with light in the farmland 4 kilometers away from the following insect radar, sort the number of insects in the light every morning, and record the total number of insects.

[0095] Experimental processing settings: the insect radar (KC-08XVSH) is turned on every night and turned off in the early morning, and the aerial insects are sampled synchronously with the sounding light trap, and the calculation method in the first implementation is used to obtain the mass, flight speed and flight direction.

[0096] Summarize the daily number of insects detected by radar and compare with the daily number of insects trapped by searchlights (see figure 1 and figure 2 ), the results showed...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an insect biological flow measuring and calculating method based on an insect radar, which aims to solve the technical problem that the insect biological flow cannot be rapidly and accurately monitored, measured and calculated in a large area at present. According to the method, related radar signals are analyzed, the quality of each insect signal is obtained, the flight speed of the insect target is measured and calculated, then the density of the insect signals in the air can be calculated, and the size of the insect biological flow of the insects in the air of the radar is estimated through the flight direction of the insect target. According to the method, after signal sampling in a large-range space is instantly achieved through the insect radar, the mass, the flight speed, the space density and the like of various insects can be calculated, then daily insect biological flow and total insect biological flow are calculated, the problem that the absolute number of the insects cannot be comprehensively and accurately estimated in a large area is solved, a scientific basis is provided for exploring and researching the influence of long-distance migrated insects on an ecological system and utilizing natural enemy resources.

Description

technical field [0001] The invention relates to the field of animal ecology, in particular to a method for measuring and calculating insect biological flow based on insect radar. Background technique [0002] The migration of insects is a natural phenomenon that has always existed in nature, and it is an important part of the atmospheric ecosystem in the biosphere. The gathering and outbreak of migratory pests bring a devastating blow to my country's grain production every year. Before the 19th century, the frequent migration of migratory locusts caused the locust plague to be the heaviest agricultural disaster in my country; in the first half of the 20th century, the oriental armyworm (army insect) has always been a major disaster for crops in our country. The outbreak of cotton bollworm in the 1990s has attracted people's attention; just entering the 21st century, the outbreak of rice planthoppers and rice leaf rollers in the middle and lower reaches of the Yangtze River c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01S13/88G01S7/41
CPCG01S13/88G01S7/411G01S7/415
Inventor黄建荣封洪强田彩红李国平王根松胡高
OwnerINST OF PLANT PROTECTION HENAN ACAD OF AGRI SCI