CN103869307A - Millimeter wave scanning entomological radar detection system and detection method - Google Patents
Millimeter wave scanning entomological radar detection system and detection method Download PDFInfo
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- CN103869307A CN103869307A CN201210553850.5A CN201210553850A CN103869307A CN 103869307 A CN103869307 A CN 103869307A CN 201210553850 A CN201210553850 A CN 201210553850A CN 103869307 A CN103869307 A CN 103869307A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
Abstract
The invention discloses a millimeter wave scanning entomological radar detection system and a millimeter wave scanning entomological radar detection method. The detection system comprises an antenna device, a transmitter, a receiver, a signal processor and a data acquisition terminal, wherein the antenna device is used for transmitting a microwave signal for detecting an insect and receiving the microwave signal reflected by the insect; the transmitter is used for producing a pulse modulated microwave signal for detecting the insect and transmitting the pulse modulated microwave signal for detecting the insect through the antenna device; the receiver is used for receiving the microwave signal reflected by the insect and processing the microwave signal; the signal processor is used for receiving, converting and processing the signal processed by the receiver, and acquiring insect intensity data; the data acquisition terminal analyzes and calculates the acquired insect intensity data and azimuth data to obtain the spatial distribution and time information of the insect. The millimeter wave scanning entomological radar detection system and the millimeter wave scanning entomological radar detection method provided by the invention are used for carrying out the real-time monitoring and the dynamic analysis of a migration process of important migratory injurious insects of rice so as to realize early-warning of insect pests.
Description
Technical field
The present invention relates to Radar Technology field, particularly a kind of millimeter wave scanning entomological radar detection system and detection method.
Background technology
The entomological radar of prior art can be surveyed the great insect that migrates of various agricultural, still, traditional scanning entomological radar to pest population dynamics carry out for a long time, robotization survey be unpractical.First be that scanning entomological radar equipment is very complicated, be not suitable for long-term running automatically, data analysis need to expend plenty of time and energy; Secondly, the kind recognition capability of scanning entomological radar is limited, in theory, in the time that wave beam is static, if Migrating Insects individuality is residence time long enough in radar beam, system can be recorded to the individual frequency of fluttering its wings up and down so, but owing to can overlapping in same direction between individuality, the frequency of fluttering its wings up and down of body can be subject to the impact of another individuality one by one, and making to scan entomological radar, to rely on the frequency of fluttering its wings up and down to carry out Identification of Species infeasible.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is, for the deficiencies in the prior art, provide a kind of millimeter wave scanning entomological radar detection system and detection method, for carrying out Real-Time Monitoring and the performance analysis of the important migratory pest Migrating of paddy rice, to realize the early warning of insect pest.
(2) technical scheme
The invention provides a kind of millimeter wave scanning entomological radar detection system, comprising:
Antenna assembly, surveys insect microwave signal and receives feedback insect microwave signal for sending;
Transmitter, surveys insect microwave signal and sends by antenna assembly for generation of pulsed modulation;
Receiver, for receiving feedback insect microwave signal, and processes this microwave signal;
Signal processor, for receiving through described receiver signal after treatment and changing and process, obtains insect intensity data;
Data acquisition back end, carries out analysis and calculation to obtaining insect intensity data and bearing data, obtains space distribution and the temporal information of insect.
Wherein, described antenna assembly comprises: antenna, drive motor and synchronous motor; Described synchronous motor, for measuring the position angle of antenna.
Wherein, described millimeter wave scanning entomological radar detection system also comprises:
Servo-drive system, drives described antenna rotation for controlling described drive motor.
Monitor control system, for described transmitter, receiver, servo-drive system and signal processor are monitored and controlled, and obtains the elevation angle and the bearing data of antenna by the synchronous motor in antenna assembly;
Wherein, described servo-drive system drives the rotation of described antenna by described drive motor, and its rotation mode comprises: flat scanning, highly scan and volume scan.
The present invention also provides a kind of millimeter wave scanning entomological radar detection method, comprising:
S1: transmitter, by antenna assembly to sending microwave signal in the air;
S2: the current microwave signal that receiver feeds back by described antenna assembly is also processed rear acquisition logarithmic signal and sends to signal processor;
S3: detect control system and obtain the elevation angle and the bearing data of antenna by the synchronous motor in antenna assembly, and send to signal processor;
S4: described signal processor is to logarithmic signal in reception S2 and carry out A/D conversion and digital video Integral Processing, obtain after insect intensity data, send and interrupt application signal to data acquisition back end, and the bearing data in current insect intensity data and S3 is sent to data acquisition back end storage and returns to S1, until the antenna in antenna assembly is carried out S5 after rotating a circle;
S5: described data collection station, by insect intensity data and the bearing data analysis and calculation of storage, draws space distribution and the temporal information of insect, and sends to external unit.
Wherein, S4 also comprises: described signal processor receives the transmitting start pulse signal that described receiver sends, to determine the zero distance position of echo.
Wherein, before S4, also comprise S4 ': described signal processor is processed bearing data, form orientation pulse and orientation zero pulse, and be sent to described transmitter, control described transmitter and in the time that antenna turns round, just carry out microwave signal transmitting.
Wherein, in S2, the current microwave signal that receiver feeds back by described antenna assembly is also carried out low noise amplification and is down-converted to Video processing.
(3) beneficial effect
Provide a kind of millimeter wave scanning entomological radar detection system and detection method, for carrying out Real-Time Monitoring and the performance analysis of the important migratory pest Migrating of paddy rice, to realize the early warning of insect pest.
Accompanying drawing explanation
Fig. 1 is millimeter wave scanning entomological radar detection system structured flowchart of the present invention;
Fig. 2 is millimeter wave scanning entomological radar detection method block diagram of the present invention;
Fig. 3 is millimeter wave scanning entomological radar detection system fundamental diagram of the present invention;
Fig. 4 is insect radar monitoring result figure while taking off;
Fig. 5 is the insect radar monitoring result figure while migrating that passes by;
Fig. 6 is the directed flight of insect radar monitoring result figure;
Fig. 7 is high-altitude radar return quantity real-time change curve map in insect peak period;
Fig. 8 is air-ground radar return quantity real-time change curve map in insect peak period.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
As Fig. 1 and with reference to as shown in figure 3, the invention provides a kind of millimeter wave scanning entomological radar detection system, comprising:
Transmitter 1, for generation of surveying the pulsed modulation microwave signal of insect and sending by antenna assembly 3;
Receiver 4, for receiving insect reflected microwave signal, and processes this microwave signal;
Data acquisition back end 6, carries out analysis and calculation to obtaining insect intensity data and bearing data, obtains space distribution and the temporal information of insect
Described antenna assembly 3 comprises: antenna 31, drive motor 32 and synchronous motor 33; Described synchronous motor 33, for measuring the position angle of described antenna 31.
Described millimeter wave scanning entomological radar detection system also comprises:
Servo-drive system 2, drives described antenna 31 to rotate for controlling described drive motor 32.
Monitor control system 7, the data sampling and processing and the display command that send by receiving described data acquisition back end 6, described transmitter 1, receiver 4, servo-drive system 2 and signal processor 5 are monitored and controlled, and obtain the elevation angle and the bearing data of antenna by the synchronous motor 33 in antenna assembly 3;
Described servo-drive system 2 drives described antenna 31 to rotate by described drive motor 32, and its rotation mode comprises: flat scanning, highly scanning and volume scan.
When flat scanning, antenna 31 encircles and sweeps at the appointment elevation angle, has obtained orientation, distance, the strength information of insect, the parallel planes position display of going forward side by side (PPI).
While highly scanning, antenna 31, specifying orientation highly to come and go scanning, has obtained the elevation angle, distance, the strength information of insect, and the row distance height of going forward side by side shows (RHI).
When volume scan, on the elevation angle that antenna 31 increases one group of order of specifying, carry out respectively a flat scanning, to obtain the insect information of solid space.
The present invention also provides a kind of millimeter wave scanning entomological radar detection method, comprising:
S1: transmitter 1, by antenna assembly 3 to sending microwave signal in the air;
S2: the current microwave signal that receiver 4 feeds back by described antenna assembly 3 and carry out low noise amplification and be down-converted to Video processing after obtain logarithmic signal and send to signal processor 5;
S3: detect control system 7 and obtain the elevation angle and the bearing data of antenna 31 by the synchronous motor 33 in antenna assembly 3, and send to signal processor 5;
S4 ': described signal processor 5 is processed bearing data, forms orientation pulse and orientation zero pulse, and is sent to described transmitter 1, controls described transmitter 1 and in the time that antenna 31 turns round, just carries out microwave signal transmitting.
S4: described signal processor 5 is to logarithmic signal in reception S2 and carry out A/D conversion and digital video Integral Processing, obtain after insect intensity data, send and interrupt application signal to data acquisition back end 6, and the bearing data in current insect intensity data and S3 is sent to data acquisition back end deposit 6 storages and return to S1, until the antenna 31 in antenna assembly 3 is carried out S5 after rotating a circle; Described signal processor 5 receives the transmitting start pulse signal that described receiver 4 sends, to determine the zero distance position of echo.
S5: described data collection station 6, by insect intensity data and the bearing data analysis and calculation of storage, draws space distribution and the temporal information of insect, and sends to external unit.
Monitoring result:
According to the parameter of the millimeter wave scanning entomological radar detection system of table 1, monitor:
The radar monitoring result of 2007-2012 shows: millimeter wave scanning entomological radar can be followed the trail of completely to aerial planthopper, the time that the microminiature insects such as rice leaf roller and natural enemy insect Mirid, cyrtorhinus migrate in the air, highly, the flight parameters such as quantity and aerial density, arrange and can guarantee the integrality of sampler space height and without additivity by the different elevations angle, three kinds of different scanning forms different feature when the aerial vertical distribution state of Insects can obtain insect airflight from different perspectives: take off, directed (dumbbell shape), gather migrate (stratification ring-type) (referring to Fig. 4-Fig. 6).
As shown in Figure 7 and Figure 8, planthopper takes off in this locality and mainly take off in dim shadow moment and moment at dawn summer, form the feature of " morning and evening is bimodal ", planthopper summer migration height is relatively high, mainly concentrate on 700-1900m, have obvious stratification, mainly assemble stratification at 1400 ~ 1900m and distribute, the highest flying height reaches 2200m left and right; Autumn, planthopper flying height reduced, and can reach 1800m early autumn, and majority concentrates on below 1500m, still has " morning and evening is bimodal " feature; Mainly concentrate on 800m and fly below late fall, and more than seldom expanding to 1100m, planthopper only takes off between the lights, presents the feature of " unimodal ".
Above embodiment is only for illustrating the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (8)
1. a millimeter wave scanning entomological radar detection system, is characterized in that, comprising:
Antenna assembly, for sending the microwave signal of surveying insect microwave signal and receiving insect reflection;
Transmitter, for generation of surveying the pulsed modulation microwave signal of insect and sending by antenna assembly;
Receiver, for receiving insect reflected microwave signal, and processes this microwave signal;
Signal processor, for receiving through described receiver signal after treatment and changing and process, obtains insect intensity data;
Data acquisition back end, carries out analysis and calculation to obtaining insect intensity data and bearing data, obtains space distribution and the temporal information of insect.
2. the system as claimed in claim 1, is characterized in that, described antenna assembly comprises: antenna, drive motor and synchronous motor; Described synchronous motor, for measuring the position angle of described antenna.
3. system as claimed in claim 2, is characterized in that, described millimeter wave scanning entomological radar detection system also comprises:
Servo-drive system, drives described antenna rotation for controlling described drive motor.
Monitor control system, the data sampling and processing and the display command that send by receiving described data acquisition back end, described transmitter, receiver, servo-drive system and signal processor are monitored and controlled, and obtain the elevation angle and the bearing data of antenna by the synchronous motor in antenna assembly.
4. system as claimed in claim 3, is characterized in that, described servo-drive system drives the rotation of described antenna by described drive motor, and its rotation mode comprises: flat scanning, highly scan and volume scan.
5. a millimeter wave scanning entomological radar detection method, is characterized in that, comprising:
S1: transmitter, by antenna assembly to sending microwave signal in the air;
S2: the current microwave signal that receiver feeds back by described antenna assembly is also processed rear acquisition logarithmic signal and sends to signal processor;
S3: detect control system and obtain the elevation angle and the bearing data of antenna by the synchronous motor in antenna assembly, and send to signal processor;
S4: described signal processor is to logarithmic signal in reception S2 and carry out A/D conversion and digital video Integral Processing, obtain after insect intensity data, send and interrupt application signal to data acquisition back end, and the bearing data in current insect intensity data and S3 is sent to data acquisition back end storage and returns to S1, until the antenna in antenna assembly is carried out S5 after rotating a circle;
S5: described data collection station, by insect intensity data and the bearing data analysis and calculation of storage, draws space distribution and the temporal information of insect, and sends to external unit.
6. method as claimed in claim 5, is characterized in that, S4 also comprises: described signal processor receives the transmitting start pulse signal that described receiver sends, to determine the zero distance position of echo.
7. method as claimed in claim 6, it is characterized in that, before S4, also comprise S4 ': described signal processor is processed bearing data, form orientation pulse and orientation zero pulse, and be sent to described transmitter, control described transmitter and in the time that antenna turns round, just carry out microwave signal transmitting.
8. method as claimed in claim 7, is characterized in that, in S2, the current microwave signal that receiver feeds back by described antenna assembly is also carried out low noise amplification and is converted to Video processing.
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Cited By (10)
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| CN104597443A (en) * | 2015-01-22 | 2015-05-06 | 成都锦江电子系统工程有限公司 | Millimeter-wave radar networking based insect detection system |
| CN105629229A (en) * | 2015-12-28 | 2016-06-01 | 深圳市太赫兹科技创新研究院 | Airplane nondestructive testing system and airplane nondestructive testing method |
| CN105699493A (en) * | 2015-12-28 | 2016-06-22 | 深圳市太赫兹科技创新研究院 | High-speed rail nondestructive testing system and method |
| CN105699494A (en) * | 2015-12-28 | 2016-06-22 | 深圳市太赫兹科技创新研究院 | Millimeter wave holographic three-dimensional imaging detection system and method |
| CN106501802A (en) * | 2016-04-18 | 2017-03-15 | 北京理工大学 | High-resolution multidimensional synergistic insect is migrated Radar Measurement Instrument |
| RU2673166C1 (en) * | 2017-06-13 | 2018-11-22 | Акционерное общество "Ордена Трудового Красного Знамени Всероссийский научно-исследовательский институт радиоаппаратуры" (АО "ВНИИРА") | Device for observing swarm locusts |
| CN108935436A (en) * | 2018-07-12 | 2018-12-07 | 芜湖博高光电科技股份有限公司 | A kind of millimeter wave life detection bird-repeller system and bird repellent method |
| CN113030949A (en) * | 2021-03-06 | 2021-06-25 | 河南省农业科学院植物保护研究所 | Insect biological flow measuring and calculating method based on insect radar |
| CN113093179A (en) * | 2021-03-08 | 2021-07-09 | 北京理工大学前沿技术研究院 | Insect density monitoring method based on weather radar |
| CN115826062A (en) * | 2022-11-22 | 2023-03-21 | 广东分数维无线科技有限公司 | Organism identification system and method based on millimeter wave radar |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104597443A (en) * | 2015-01-22 | 2015-05-06 | 成都锦江电子系统工程有限公司 | Millimeter-wave radar networking based insect detection system |
| CN105629229A (en) * | 2015-12-28 | 2016-06-01 | 深圳市太赫兹科技创新研究院 | Airplane nondestructive testing system and airplane nondestructive testing method |
| CN105699493A (en) * | 2015-12-28 | 2016-06-22 | 深圳市太赫兹科技创新研究院 | High-speed rail nondestructive testing system and method |
| CN105699494A (en) * | 2015-12-28 | 2016-06-22 | 深圳市太赫兹科技创新研究院 | Millimeter wave holographic three-dimensional imaging detection system and method |
| CN106501802B (en) * | 2016-04-18 | 2019-01-18 | 北京理工大学 | High-resolution multidimensional synergistic insect is migrated Radar Measurement Instrument |
| CN106501802A (en) * | 2016-04-18 | 2017-03-15 | 北京理工大学 | High-resolution multidimensional synergistic insect is migrated Radar Measurement Instrument |
| RU2673166C1 (en) * | 2017-06-13 | 2018-11-22 | Акционерное общество "Ордена Трудового Красного Знамени Всероссийский научно-исследовательский институт радиоаппаратуры" (АО "ВНИИРА") | Device for observing swarm locusts |
| CN108935436A (en) * | 2018-07-12 | 2018-12-07 | 芜湖博高光电科技股份有限公司 | A kind of millimeter wave life detection bird-repeller system and bird repellent method |
| CN113030949A (en) * | 2021-03-06 | 2021-06-25 | 河南省农业科学院植物保护研究所 | Insect biological flow measuring and calculating method based on insect radar |
| CN113030949B (en) * | 2021-03-06 | 2023-12-15 | 河南省农业科学院植物保护研究所 | Insect biological logistics measurement and calculation method based on insect radar |
| CN113093179A (en) * | 2021-03-08 | 2021-07-09 | 北京理工大学前沿技术研究院 | Insect density monitoring method based on weather radar |
| CN113093179B (en) * | 2021-03-08 | 2022-07-12 | 北京理工大学前沿技术研究院 | Insect density monitoring method based on weather radar |
| CN115826062A (en) * | 2022-11-22 | 2023-03-21 | 广东分数维无线科技有限公司 | Organism identification system and method based on millimeter wave radar |
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