KR20230030242A - Mosquito repelling device using mixed frequency and mosquito repelling method using same - Google Patents

Abstract

The present invention relates to a mosquito repelling device using mixed square waves and a mosquito repelling method using the same. The mosquito repelling device comprises: a low-frequency unit which generates a 20 to 400 Hz square wave, which is a frequency that mosquitoes dislike, and a high-frequency unit which generates a 15 to 25 KHz square wave, which is a frequency that bats which are the natural enemies of mosquitoes generate; a multiplier which multiplies the square waves of the low-frequency unit and the high-frequency unit so that the square waves are mixed at a high level of the low-frequency unit; a PWM unit which adjusts the low-frequency high-level width of mixed square waves through the multiplier by using a PWM method, and adjusts a high-frequency high-level width mixed with the width-adjusted low-frequency high-level width by using the PWM method; a control unit which functions to modulate the low- and high-frequency square wave high-level widths according to modes; an input unit which selects and inputs an operating mode to the control unit; and a display (108) which displays a selection of the input unit. The mosquito repelling method sequentially and repeatedly performs: a frequency generation step of generating a low-frequency square wave of 20 to 400 Hz and a high-frequency square wave of 15 to 25 KHz; a mixing step of mixing only a high-level section of the low-frequency square wave to generate a mixed square wave mixed with the high-frequency square wave corresponding to the section time; and a low-frequency output varying step of varying the low-frequency high-level width (d1) of the mixed square wave. The low-frequency output varying step includes a linking step in which both the low-frequency high-level width and the high-level width of the high-frequency square wave mixed with the low-frequency high-level width are linked at regular intervals. Therefore, various pests can be eradicated at the same time.

Description

Mosquito repelling device using mixed square wave and mosquito repelling method using the same {Mosquito repelling device using mixed frequency and mosquito repelling method using same}

The present invention relates to a mosquito repellent device using a mixed square wave and a mosquito repellent method using the same.

Mosquitoes are insects that were born before the Mesozoic Era and have survived despite numerous environmental changes. In addition, despite the numerous chemical and biological methods developed through the development of science and technology, it does not disappear and continues to prosper. In particular, due to global warming, the area where mosquitoes can live is getting wider, so the damage caused by mosquitoes is expected to be further expanded. There are 3300 types of mosquitoes in the world, and it is reported that there are about 55 types of mosquitoes in Korea. Among these, the typical problematic types are the blood-sucking mosquitoes, the red house mosquito and the house mosquito, the red house mosquito, which is a carrier of Japanese encephalitis in summer, and the Chinese spotted wing mosquito, which is a carrier of malaria near the truce line.

It is a known fact among biologists that sounds can attract or evade mosquitoes. To understand this part, it is necessary to explain the growth process of mosquitoes.

Mosquitoes hatch in about 3 days after laying eggs on the water and become larvae, and it takes about 13 to 20 days to become adults from eggs, and the life span of adults is 1 to 2 months. Mosquitoes are adults and mate between 2 and 4 days after eclosion. Male mosquitoes form groups around sunset and fly in groups at a height of 2 to 3 m. Vampirism is limited to females after mating, and females or males suck plant sap or fruit juice before mating. Females mate only once in their lifetime and have a seminal receptacle that can preserve sperm for a long time in their bodies. Because of this, it can fertilize the required number of sperm before laying eggs. The female sucks blood once or twice and starts laying eggs in 4 to 7 days.

For female mosquitoes before copulation, the flight sound of the male mosquito can be a means of attraction, whereas the flight sound of the male mosquito becomes a means of avoidance because the female mosquito wants to avoid additional mating. Examples of using the flight sound of male mosquitoes as a means of avoiding mosquitoes are as follows. According to the principle that the female mosquito avoids the flight sound of the male mosquito after mating by sucking blood, a program that simulates the flight sound of the male mosquito is being introduced as mobile content of wireless communication companies and provided to mobile phone users. People can only hear a 'beep' sound, but it was effective in repelling mosquitoes. However, there is a limitation in that it is effective in eradicating mosquitoes and does not play a role in eliminating mosquitoes themselves or reducing their population.

The technology to generate frequencies to combat the approach of mosquitoes includes domestic patent registration No. 10-0704413 (multi-frequency exchange output method mosquito repellent device), and domestic patent publication No. 10-2009-0014926 (multi-level sonic vibration yellow emitting mosquito repellent device). ), and Korean Patent Publication No. 10-2009-0109885 (a pest repellent equipped with a piezo speaker) is known. As shown in FIG. 1, this technology includes a first frequency generating circuit (11) of 30 to 50 Hz for exterminating rodents such as mice and squirrels, a second frequency generating circuit (12) of 10 to 50 KHz for exterminating flying insects such as cockroaches and bats, mites, a frequency generator 10 having a third frequency generator circuit 13 of 20 to 50 KHz for exterminating insects such as lightning and ants; an amplifier 20 that amplifies the frequency generated by the frequency generator 10; a speaker unit 30 that receives the output of the amplification unit 20 and outputs a frequency; a light emitting unit 40 that emits light; a control unit 60 for controlling the operation of each component; an operation indication unit 50 that displays an operation state according to an instruction of the control unit 60; It may be exemplified by including a power supply unit 70 supplying power to each component.

However, since they select and output a desired frequency, it is difficult to effectively respond to the invasion of rodents, flying insects, and insects living in various environments.

In the present invention, the width modulation has been described as a PWM (Pulse Width Modulation) method, but it will be appreciated that the PAM (Pulse Amplitude Modulation) method can also be implemented.

The duty cycle in the present invention is preferably 10 to 90%, and if it is less than 10%, it is difficult for mosquitoes to recognize the effect of generating a square wave, and if it exceeds 90%, mosquitoes become resistant and the repelling effect is lowered.

The present invention is to solve this problem, and an object of the present invention is to provide a mosquito control device using a mixed square wave and a mosquito control method using the mixed square wave that simultaneously generate low frequency and high frequency square waves to simultaneously eradicate various pests.

Another object of the present invention is to increase the output duty cycle while generating low frequency and high frequency square waves at the same time to maximize the effect of various pests approaching to increase the extermination efficiency. To provide a mosquito control device using a mixed square wave and a mosquito control method using the same is to do

The present invention for this purpose is a low-frequency unit that generates a square wave of 20 to 400 Hz, which is a frequency of male mosquitoes or dragonflies that mosquitoes do not like;

15KHz ~ 25KHz square wave generation frequency, which is the frequency of bats, the natural enemy of mosquitoes;

a multiplier for multiplying the square wave outputs of the low frequency part and the high frequency part to be mixed in a high level section of the low frequency part;

a PWM unit for adjusting the width of the low-frequency high level in the mixed square wave through the multiplier using the PWM method and adjusting the width of the high-frequency high level mixed in the width-adjusted low-frequency high-level width section using the PWM method;

a control unit that stores a program that controls each of the above components and functions to perform variable low-frequency and high-frequency duty cycles for proximity recognition for each mode;

an input unit for selecting and inputting an operation mode to the control unit with a button switch; and

It is intended to provide a mosquito repellent device using a mixed square wave including a display for outputting a selected operation mode of an input unit.

As described above, the present invention provides a mosquito control device using a mixed square wave and a mosquito control method using the same, in which low-frequency and high-frequency square waves are simultaneously generated to simultaneously eradicate various pests.

The present invention provides a mosquito repellent device using a mixed square wave and a mosquito repellent method using the mixed square wave that maximizes the effect of proximity of various pests by increasing the duty cycle while generating low and high frequency square waves at the same time and increasing the extermination efficiency.

1 is a general configuration diagram of generating a frequency to combat the approach of mosquitoes;
2 is an audible frequency band of an animal;
3 is a block configuration diagram of the present invention;
4 is a block configuration diagram showing another example of the present invention;
5 is a waveform diagram showing an example of synthesizing a high-frequency square wave with a low-frequency square wave according to the present invention;
6 is a waveform diagram showing an example of duty cycle adjustment in a state in which a high-frequency square wave is synthesized with a low-frequency square wave according to the present invention;
7 is a flow chart of the present invention;
8 is a waveform diagram illustrating a low frequency modulation duty cycle of the present invention;
9 is an example of generating a square wave according to the present invention;
10 is a Schmitt trigger circuit of the SN7413 of FIG. 9.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 3, 5 and 6, the present invention includes a low-frequency unit 101 generating a square wave of 20 to 400 Hz, which is a flapping frequency of male mosquitoes or dragonflies that mosquitoes do not like;

A high frequency unit 102 that generates a square wave of 15KHz to 25KHz, which is a bat generation frequency, a natural enemy of mosquitoes;

a multiplier (103) for multiplying the square wave outputs of the low frequency part and the high frequency part to be mixed in the high level section of the low frequency part (101);

A PWM unit 105 for adjusting the width of the low-frequency high level in the mixed square wave through the multiplier 103 using the PWM method and adjusting the width of the high-frequency high level mixed in the width-adjusted low-frequency high level width section using the PWM method;

a control unit 106 which stores a program that controls each of the above components and functions to perform low-frequency and high-frequency duty cycle variations for proximity recognition by mode;

an input unit 107 that selects and inputs an operation mode to the control unit 106 with a button switch; and

It is configured to include a display 108 that outputs the selected operation mode of the input unit 107.

In the present invention, the low frequency part 101 and the high frequency part 102 use a known square wave generating means using a frequency generator that generates its own frequency, a rectifier that converts it into a digital waveform, and a capacitor for noise removal, or 9 and 10 can illustrate that kx generates a square wave using a Schmitt trigger circuit, which is a bistable multivibrator. The duty cycle adjustment of the square wave can be varied by varying the bias resistor and capacitor providing the bias voltage of the switching transistors (Q1, Q2) of the Schmitt trigger circuit so as to vary the high level width of the square wave as shown in FIG. In , the specific illustration of the device is omitted and the duty cycle is adjusted.

In the present invention, since the square wave shown in FIGS. 5 and 6 can be generated as shown in FIGS. 9 and 10, or the low frequency square wave or high frequency square wave stored for each frequency is provided by the control unit, the low frequency unit 101 can be simply implemented. And the high-level unit 102 specifies the corresponding square wave generating means, and receives and outputs a high-level control signal through the output terminals O1 and O2 of the control unit 106.

In the multiplier 103 of the present invention, the square wave waveform of the high frequency part 102 is generated in the square wave high level section of the low frequency part 101 as shown in FIG. Mix to add. The multiplier 103 functions to mix the square wave output of the high frequency unit 102 generated during the time corresponding to the high level section of the low frequency square wave. Of course, for this, a means for amplifying the level of the high-frequency square wave to match the high level of the low-frequency square wave must be accompanied, and since this amplification function is a known technology, it is specified that it is simply mixed.

A first switch 104 is further added to the input terminal of the multiplier 103, which is connected in parallel as shown in FIGS. 4, 5, and 6 and selects the square wave output of the low frequency part 101 or the square wave output of the high frequency part 102. It can be exemplified that a second switch 109 that selects the output of the multiplier 103 and the switching output of the first switch 104 and applies it to the PWM unit 105 is further added. If the first switch 104 and the second switch 109 are not used, it is performed in the same way as in FIG. 3, and if necessary, the first switch 104 and the second switch 109 can be used individually. means there is

The mosquito control method of the present invention is as shown in FIG. 7,

The control unit 106 instructs the output terminals O1 and O2 to generate low-frequency square waves of 20 Hz to 400 Hz and high-frequency square waves of 15 KHz to 25 KHz in the low frequency part 101 and the high frequency part 102 shown in FIG. 3, respectively. Frequency generation process (S10);

In the controller 106, when instructed through the output terminals O1 and O2, the low-frequency square wave corresponds (it may be automatically selected, or it may be selected depending on the mode). Only the duty cycle high-level section corresponds to that section a mixing process (S20) of performing mixing through an output terminal (O3) to mix a high frequency in synchronization with a high level section of a low frequency to generate a mixed frequency in which a high frequency square wave corresponding to is mixed; and

The pulse generation duty cycle of the low-frequency part 101 and the high-frequency part 102 provided by the control unit 106 through the output terminals O1 and O2 can be varied, and the duty cycle of the variable square wave can be changed if necessary. It will be appreciated that it is also possible to select from the saved list and print it. sequentially and repeatedly performing the low-frequency square wave varying process (S30) of varying the duty cycle (for example, varying from FIG. 5 to FIG. 6) to vary the high level width d1 of the low-frequency square wave;

In the variable process (S30), the low-frequency high-level width at regular intervals and the high-frequency high-level width of each high frequency mixed with the low-frequency high-level width are the high-level width (d1) for the low-level width (d2) shown in FIG. It is performed including an interlocking process (S40) of simultaneously interlocking as shown in FIG. 6 so that the duty cycle of is variable as shown in FIG.

In the frequency generation process (S10), the low frequency square wave generation process is preferably performed repeatedly by increasing and decreasing the frequency from 20 Hz to 400 Hz.

In the frequency generation process (S10), the high-frequency square wave generation process is preferably performed repeatedly by increasing and then decreasing from 15 KHz to 25 KHz. Of course, low-frequency and high-frequency square waves of a certain frequency may be used.

In the interlocking process (S40), an increasing process in which the low-frequency high-level width and the high-frequency high-level width mixed with the low-frequency high-level width gradually increase, and a return process of returning to an initial state after the increasing process are repeatedly performed. This is to increase the mosquito repellent effect by providing mosquitoes with a feeling of repeating that the sound increases as it approaches, decreases, goes away or disappears, and then approaches and disappears again, compared to sound.

101; low frequency unit 102; high frequency unit 103; multiplier 104; first switch 105; PWM unit 106; control unit 107; input unit 108; display 109; second switch

Claims (6)

A low-frequency unit 101 generating a square wave of 20 to 400 Hz, which is a flapping frequency of male mosquitoes or dragonflies that mosquitoes do not like;
A high frequency unit 102 that generates a square wave of 15KHz to 25KHz, which is a bat generation frequency, a natural enemy of mosquitoes;
a multiplier (103) for multiplying the square wave outputs of the low frequency part and the high frequency part to be mixed in the high level section of the low frequency part (101);
A PWM unit 105 for adjusting the width of the low-frequency high level in the mixed square wave through the multiplier 103 using the PWM method and adjusting the width of the high-frequency high level mixed in the width-adjusted low-frequency high level width section using the PWM method;
a control unit 106 which stores a program that controls each of the above components and functions to perform low-frequency and high-frequency duty cycle variations for proximity recognition by mode;
an input unit 107 that selects and inputs an operation mode to the control unit 106 with a button switch; and
A mosquito repellent device using a mixed square wave including a display 108 outputting the selected operation mode of the input unit 107.
According to claim 1, a first switch (104) is further added to the input terminal of the multiplier (103), which is connected in parallel and selects a square wave output from the low frequency part (101) or a square wave output from the high frequency part (102). A mosquito repellent device using a mixed square wave, characterized in that a second switch 109 is further added to select the output of the multiplier 103 and the switching output of the first switch 104 and apply it to the PWM unit 105.
A frequency generating process of generating a low-frequency square wave of 20Hz to 400Hz and a high-frequency square wave of 15KHz to 25KHz, respectively (S10);
a mixing process (S20) of mixing only a high-level section constituting a corresponding duty cycle of a low-frequency square wave to generate a mixed square wave in which a high-frequency square wave corresponding to the section is mixed; and
sequentially and repeatedly performing a low-frequency output varying process (S30) of varying the low-frequency high-level width (d1) of the mixed square wave with a set duty cycle;
The variable process (S30) includes an interlocking process (S40) in which the high level width of the low-frequency square wave and the high level width of the high-frequency square wave mixed with the high-level width of the low-frequency square wave are simultaneously interlocked with a set duty cycle at regular intervals. Mosquito control method using a mixed square wave, characterized in that.
4. The method of claim 3, wherein in the frequency generating process (S10), the low-frequency square wave generation process is performed by repeatedly increasing and decreasing the 20Hz square wave to the 400Hz square wave.
The method of claim 3, wherein the high-frequency square wave generation process in the frequency generation process (S10) is performed repeatedly by increasing and decreasing from 15KHz square wave to 25KHz square wave.
4. The method of claim 3, wherein the interlocking process (S40) comprises: an increasing process in which the high-frequency high-level width mixed with the high-level section constituting the duty cycle of the high-frequency high-level width with respect to the low-frequency high-level width gradually increases; Mosquito control method using mixed frequency, characterized in that the returning process is repeatedly performed.

Images