CN115281163A - Insecticidal lamp power control method and system based on capacitance measurement of pest activity - Google Patents
Insecticidal lamp power control method and system based on capacitance measurement of pest activity Download PDFInfo
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- 230000000749 insecticidal effect Effects 0.000 title claims abstract description 97
- 241000607479 Yersinia pestis Species 0.000 title claims abstract description 76
- 230000000694 effects Effects 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005259 measurement Methods 0.000 title claims abstract description 19
- 238000005070 sampling Methods 0.000 claims abstract description 47
- 238000004364 calculation method Methods 0.000 claims description 25
- 230000001174 ascending effect Effects 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 5
- 241000238631 Hexapoda Species 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
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- 239000002699 waste material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
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- 238000001914 filtration Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M1/00—Stationary means for catching or killing insects
- A01M1/02—Stationary means for catching or killing insects with devices or substances, e.g. food, pheronones attracting the insects
- A01M1/04—Attracting insects by using illumination or colours
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Pest Control & Pesticides (AREA)
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Abstract
The invention belongs to the technical field of insecticidal lamps, and particularly relates to an insecticidal lamp power control method and system based on capacitance measurement of pest activity. The method comprises the following steps: s1, starting an insect killing lamp, and sampling capacitance values in a cavity of the insect killing lamp according to a set sampling frequency to obtain a plurality of capacitance value sampling data and form a first sample set; s2, calculating the pest activity index in the cavity of the insecticidal lamp according to the first sample set; and S3, controlling the working power of the insecticidal lamp according to the activity index of the pests in the cavity of the insecticidal lamp. According to the invention, the capacitance value in the insecticidal lamp cavity is sampled, the pest activity index in the insecticidal lamp cavity is calculated according to the sampling result, and the working power of the insecticidal lamp is adjusted according to the pest activity index in the insecticidal lamp cavity, so that the energy is greatly saved, and the green development concept is met.
Description
Technical Field
The invention belongs to the technical field of insecticidal lamps, and particularly relates to an insecticidal lamp power control method and system based on capacitance measurement of pest activity.
Background
Because the service environment of insecticidal lamp is mostly in open-air orchard or farmland, the power supply is extremely inconvenient, adopts solar charging mode mostly. Most of the current researches on the energy problem of the insecticidal lamp are to improve the photovoltaic charging efficiency and select a large-capacity battery for energy storage. However, these methods have high requirements on hardware and software, and especially, the hardware cost is greatly increased. And the insecticidal lamps on the market are mostly in working modes of timing on (off), and the modes have the defects of low insecticidal efficiency and large energy waste, and do not accord with the concept of sustainable development.
For example, the chinese patent publication No. CN113949768a discloses a farm insecticidal lamp monitoring and management platform, in which the timing module is in communication connection with a processor, and the timing module can set the color and working time period of the insecticidal lamp to perform timing control on the insecticidal lamp. Although the timing control of the insecticidal lamp is realized, the working power of the insecticidal lamp cannot be adjusted in real time according to actual conditions, so that the defect of great energy waste still exists.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the power control method and the power control system for the insecticidal lamp based on the capacitance measurement of the pest activity, so that the energy of the insecticidal lamp is greatly saved, and the green development concept is met.
The invention adopts the following technical scheme:
a power control method of a pest killing lamp based on capacitance measurement of pest activity comprises the following steps:
s1, starting an insecticidal lamp, and sampling capacitance values in a cavity of the insecticidal lamp according to a set sampling frequency to obtain a plurality of capacitance value sampling data and form a first sample set;
s2, calculating the pest activity index in the cavity of the insecticidal lamp according to the first sample set;
and S3, controlling the working power of the insecticidal lamp according to the activity index of the pests in the cavity of the insecticidal lamp.
Preferably, the step S2 includes the steps of:
s2.1, calculating an average deviation value, a peak-to-peak value and a sample variance according to the first sample set;
and S2.2, calculating the pest activity index in the cavity of the insecticidal lamp according to the average deviation value, the peak value and the sample variance.
Preferably, in step S2.1, the average deviation value E is calculated by the following formula:
wherein ,Di Represents the ith capacitance value sample data in the first sample set, and M represents the total number of capacitance value sample data.
Preferably, in step S2.1, the step of calculating the peak-to-peak value P includes:
a. the plurality of capacitance value sampling data in the first sample set are arranged in a descending order, and the first N capacitance value sampling data are selected in sequence to form a second data set D max ；
b. A plurality of capacitance value sampling data in the first sample set are arranged in an ascending order, and the first N capacitance value sampling data are selected in sequence to form a third data set D min ；
c. From the second data set D max A third data set D min The peak-to-peak value P is calculated.
Preferably, in step c, the calculation formula of the peak value P is as follows:
wherein ,Dmaxi Representing the ith capacitive value sample data, D, in the second data set mini Representing the ith capacitance sample data in the third data set.
Preferably, in step S2.1, the sample variance S is calculated as:
wherein ,
is the sample mean of the first sample set.
Preferably, in step S2.2, the calculation formula of the pest activity index W in the cavity of the pest killing lamp is as follows:
W＝nE+mP+lS，
wherein n, m and l all represent proportionality coefficients.
Preferably, in step S3, the duty ratio pwm of the starting voltage of the insecticidal lamp is set according to the pest activity index W in the cavity of the insecticidal lamp, so as to control the operating power of the insecticidal lamp.
Preferably, the duty ratio setting mode when the starting voltage of the insecticidal lamp adopts:
when W is less than or equal to 2,pwm =0%; when W is more than 2 and less than or equal to 7, pwm =50% + (W-2)/5 × 25%; when 7< W <10, pwm =75% + (W-7)/3 × 25%; when W is more than or equal to 10, pwm =100%.
The power control method of the insecticidal lamp based on capacitance measurement of the pest activity comprises a sampling module, a pest activity index calculation module and a working power control module which are sequentially connected;
the sampling module is used for sampling capacitance values in the cavity of the insecticidal lamp according to a set sampling frequency to obtain a plurality of capacitance value sampling data and form a first sample set;
the pest activity index calculation module is used for calculating the pest activity index in the cavity of the pest killing lamp according to the first sample set;
and the working power control module is used for controlling the working power of the insecticidal lamp according to the pest activity index in the cavity of the insecticidal lamp.
The beneficial effects of the invention are:
because the pest appearance frequency, quantity all are different in different time quantums in one day, season, weather all have certain influence to the pest condition, and the insecticidal lamp is with invariable power work and will lead to the fact a large amount of energy extravagant. According to the invention, the capacitance value in the insecticidal lamp cavity is sampled, the pest activity index in the insecticidal lamp cavity is calculated according to the sampling result, and the working power of the insecticidal lamp is adjusted according to the pest activity index in the insecticidal lamp cavity, so that the energy is greatly saved, and the green development concept is met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a method for controlling the power of an insecticidal lamp based on capacitive measurement of pest activity according to the present invention;
FIG. 2 is a flow chart of E, S, P, W calculation;
FIG. 3 is a flowchart of pwm duty cycle calculation;
fig. 4 is a schematic structural diagram of a power control system of a pest killing lamp based on capacitance measurement of pest activity according to the present invention.
Detailed Description
The following description is provided for illustrative purposes and is not intended to limit the invention to the particular embodiments disclosed. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
The first embodiment is as follows:
referring to fig. 1, the present embodiment provides a power control method of a pest killing lamp based on capacitance measurement of pest activity, including the steps of:
s1, starting an insecticidal lamp, and sampling capacitance values in a cavity of the insecticidal lamp according to a set sampling frequency to obtain a plurality of capacitance value sampling data and form a first sample set;
s2, calculating the pest activity index in the cavity of the insecticidal lamp according to the first sample set;
and S3, controlling the working power of the insecticidal lamp according to the activity index of the pests in the cavity of the insecticidal lamp.
Therefore, in the invention, the capacitance value in the insecticidal lamp cavity is sampled, the pest activity index in the insecticidal lamp cavity is calculated according to the sampling result, and the working power of the insecticidal lamp is adjusted according to the pest activity index in the insecticidal lamp cavity, so that the energy is greatly saved, and the green development concept is met.
Specifically, the method comprises the following steps:
in the step S1, the capacitance value in the cavity of the insecticidal lamp is detected by a capacitance sensor, specifically, a copper plate is added on the inner wall of the cavity of the insecticidal lamp, and a measuring circuit is externally connected to the copper plate to measure the capacitance value in the cavity.
Because the capacitance value in the cavity can fluctuate when the pests in the cavity move, such as flying or vibrating wings, the activity of the pests can be determined by measuring the capacitance value according to the characteristic.
The capacitance measuring sensor can select FDC2214 produced by TI company, and has high sampling frequency, large measuring range and high resolution of 28 bits. Meanwhile, the power consumption is extremely low, and the lamp is very suitable for the environment of a field insecticidal lamp. The control and calculation chip adopts an stm32f103 singlechip.
In step S1, after the insecticidal lamp is turned on, 5000 sampled data may be used as a set, that is, the first sample set, according to a set sampling frequency (50 HZ), and a round of sampling takes 100 seconds.
In step S2, the method includes the steps of:
s2.1, filtering the sampled data, and calculating characteristic parameters of the data set. In this embodiment, we select the characteristic parameters as:
1. average deviation value E: the absolute value of the difference between the current data and the previous data.
2. Peak-to-peak value P: the difference between the maximum sample value and the minimum sample value in the data set.
3. Sample variance S: i.e. the sample variance of the sampled data set.
And S2.2, obtaining the characteristic parameters according to calculation. And calculating the pest activity index W in the cavity of the insecticidal lamp according to a calculation formula of the pest activity index W.
Further, the working power of the insecticidal lamp is controlled according to the activity index obtained by calculation in the step S3.
In step S2.1, the calculation formula of the average deviation value E is:
wherein ,Di Represents the ith capacitance value sample data in the first sample set, and M represents the total number of capacitance value sample data, and M =5000 in this embodiment.
In step S2.1, the step of calculating the peak-to-peak value P includes:
a. the plurality of capacitance value sampling data in the first sample set are arranged in a descending order, and the first N capacitance value sampling data are selected in sequence to form a second data set D max I.e. D max The method includes the maximum N capacitance value sampling data in the first sample set, where N =100 in this embodiment;
b. a plurality of capacitance value sampling data in the first sample set are arranged in an ascending order, and the first N capacitance value sampling data are selected in sequence to form a third data set D min I.e. D min The sampling data comprises minimum N capacitance values in the first sample set;
c. from the second data set D max A third data set D min The peak to peak value P is calculated.
In step c, the calculation formula of the peak value P is as follows:
wherein ,Dmaxi Representing the ith capacitive value sample data in the second data set, D mini Representing the ith capacitance sample data in the third data set.
In step S2.1, the sample variance S is calculated as:
wherein ,
is the sample mean of the first sample set.
In step S2.2, the calculation formula of the pest activity index W in the cavity of the insecticidal lamp is:
W＝nE+mP+lS，
wherein n, m and l all represent proportionality coefficients.
In the present embodiment, n =0.632, m =0.368, and l =2.
The calculation process of the average deviation value E, the peak-to-peak value P, the sample variance S, and the pest activity index W in the cavity of the pest killing lamp can be referred to fig. 2.
Further, in step S3, specifically, the duty ratio pwm of the starting voltage of the insecticidal lamp is set according to the pest activity index W in the cavity of the insecticidal lamp, so as to control the working power of the insecticidal lamp.
The working voltage of the outdoor insecticidal lamp powered by solar energy in the market at present is generally 12v direct current. Any configuration of 0-12v voltage can be achieved by setting pwm duty cycle, i.e., 0% duty cycle for 0v,100% duty cycle for 12v. The calculation method of the pwm duty ratio is to linearize the pest activity index in a segmented manner according to the calculation. The linearization relationship is as follows:
(since the power of the insecticidal lamp is too low to kill insects when the pwm duty cycle is 0-50%, the duty cycle at the lowest starting voltage of the insecticidal lamp is set to 50%, corresponding to 6 v)
W is more than or equal to 10 pwm =100% corresponding voltage: 12v of
W ≦ 2 pwm =0% corresponding voltage: 0v
2<W ≤ 7% < pwm ≤ 75% corresponding voltage: 6v-9v
7-woven w-woven 10% < pwm <100% corresponding voltage: 9v-12v
The calculation formula is as follows:
W≤2 pwm＝0％
2<W≤7 pwm＝50％+(W-2)/5×25％
7<W<10 pwm＝75％+(W-7)/3×25％
W≥10 pwm＝100％
the calculation flow of the duty ratio of the input voltage of the insecticidal lamp can be referred to fig. 3.
In the embodiment, the wavelength of the infrared ray which is harmless to the human body is less than or equal to 300nm, and the wavelength of the infrared ray which is popular with most insects is more than or equal to 320nm, so that the wavelength of the infrared radiation of the insecticidal lamp is more than 320nm mostly, and the long-term radiation can cause harm to the human body. Therefore, when a person is detected to be close to the insecticidal lamp, the power supply is turned off, radiation to the human body is avoided, and when the person is detected to be away, the data is read again and the insecticidal lamp continues to work.
In the embodiment, the human body infrared sensing module for detecting whether a person approaches the insecticidal lamp selects the HR-SR501 module, has the characteristic of micro power consumption (less than 50 mA), and can adjust the sensitivity (the distance is 0-7 m). The angle of induction is about 90 degrees, and at 4 modules of insecticidal lamp casing externally mounted, can realize 360 environment human body detection.
Example two:
referring to fig. 2, the present embodiment provides a power control system of a pest killing lamp based on capacitance measurement of pest activity, and the power control method of a pest killing lamp based on capacitance measurement of pest activity according to the first embodiment includes a sampling module, a pest activity index calculation module, and a working power control module, which are connected in sequence;
the sampling module is used for sampling capacitance values in the cavity of the insecticidal lamp according to a set sampling frequency to obtain a plurality of capacitance value sampling data and form a first sample set;
the pest activity index calculation module is used for calculating the pest activity index in the cavity of the pest killing lamp according to the first sample set;
and the working power control module is used for controlling the working power of the insecticidal lamp according to the pest activity index in the cavity of the insecticidal lamp.
It should be noted that, the power control system of the insecticidal lamp for measuring the activity of the pests based on the capacitance provided in this embodiment is similar to the embodiment, and will not be described herein again.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention by those skilled in the art should fall within the protection scope of the present invention without departing from the design spirit of the present invention.
Claims (10)
1. A power control method of a pest killing lamp based on capacitance measurement of pest activity comprises the following steps:
s1, starting an insecticidal lamp, and sampling capacitance values in a cavity of the insecticidal lamp according to a set sampling frequency to obtain a plurality of capacitance value sampling data and form a first sample set;
s2, calculating the pest activity index in the cavity of the pest killing lamp according to the first sample set;
and S3, controlling the working power of the insecticidal lamp according to the activity index of the pests in the cavity of the insecticidal lamp.
2. The power control method of insecticidal lamp based on capacitance measurement of pest activity according to claim 1, wherein in step S2, comprising the steps of:
s2.1, calculating an average deviation value, a peak-to-peak value and a sample variance according to the first sample set;
and S2.2, calculating the pest activity index in the cavity of the insecticidal lamp according to the average deviation value, the peak value and the sample variance.
3. The power control method of insecticidal lamp based on capacitance measurement of pest activity according to claim 2, wherein in step S2.1, the calculation formula of the average deviation value E is:
wherein ,Di Represents the ith capacitance value sample data in the first sample set, and M represents the total number of capacitance value sample data.
4. A method as claimed in claim 3, wherein in step S2.1, the step of calculating the peak-to-peak value P comprises:
a. the plurality of capacitance value sampling data in the first sample set are arranged in a descending order, and the first N capacitance value sampling data are selected in sequence to form a second data set D max ；
b. A plurality of capacitance value sampling data in the first sample set are arranged in an ascending order, and the first N capacitance value sampling data are selected in sequence to form a third data set D min ；
c. From the second data set D max A third data set D min The peak to peak value P is calculated.
5. The power control method of insecticidal lamp based on capacitance measurement of pest activity according to claim 4, wherein in step c, the calculation formula of peak-to-peak value P is:
wherein ,Dmaxi Representing the ith capacitive value sample data in the second data set, D mini Representing the ith capacitance sample data in the third data set.
6. The method as claimed in claim 4, wherein in step S2.1, the sample variance S is calculated by the following formula:
wherein ,
is the sample mean of the first sample set.
7. The method for controlling power of an insecticidal lamp based on capacitive measurement of pest activity according to claim 6, wherein in step S2.2, the calculation formula of pest activity index W in the cavity of the insecticidal lamp is as follows:
W＝nE+mP+lS，
wherein n, m and l all represent proportionality coefficients.
8. The method for controlling power of an insecticidal lamp based on capacitive measurement of pest activity according to claim 7, wherein in step S3, the duty cycle pwm of the starting voltage of the insecticidal lamp is set according to the pest activity index W in the cavity of the insecticidal lamp, so as to control the operating power of the insecticidal lamp.
9. The power control method of the insecticidal lamp based on capacitance measurement of pest activity according to claim 8, characterized in that the duty ratio of the starting voltage of the insecticidal lamp is set by:
when W is less than or equal to 2,pwm =0%; when 2<W ≦ 7, pwm =50% + (W-2)/5 × 25%; when 7-woven W-woven 10, pwm =75% + (W-7)/3 × 25%; when W is more than or equal to 10, pwm =100%.
10. An insecticidal lamp power control system for measuring pest activity based on capacitance, which is the insecticidal lamp power control method for measuring pest activity based on capacitance according to any one of claims 1 to 9, and is characterized by comprising a sampling module, a pest activity index calculation module and a working power control module which are connected in sequence;
the sampling module is used for sampling capacitance values in the cavity of the insecticidal lamp according to a set sampling frequency to obtain a plurality of capacitance value sampling data and form a first sample set;
the pest activity index calculation module is used for calculating the pest activity index in the cavity of the pest killing lamp according to the first sample set;
and the working power control module is used for controlling the working power of the insecticidal lamp according to the pest activity index in the cavity of the insecticidal lamp.
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