CN105145517A - Method and device for attracting insects by variable-frequency LEDs with different duty cycles - Google Patents

Abstract

The invention provides a method and device for attracting insects by variable frequency LEDs with different duty ratios. The present invention uses a rectangular square wave with variable duty ratio and frequency as the control signal to control two or more LED lamp beads to flash according to the duty ratio and frequency of the rectangular square wave. Significant energy saving, the highest energy saving can exceed 50%; on the other hand, in the case of the same duty cycle, driving LEDs at different frequencies can obtain better insect trapping effects. In the present invention, the flickering frequency is 45~65ms Blinking works better than other blinking frequencies. Therefore, on the one hand, it utilizes the stronger phototaxis of insects to flickering lights to improve the effect of attracting insects; The range of insects and the effect of attracting insects have been greatly improved.

Description

Method and device for attracting insects with variable frequency LEDs with different duty ratios

technical field

The invention relates to the technical field, in particular to a device for attracting insects with variable frequency LEDs with different duty ratios.

Background technique

Most insects have phototaxis, so using light to attract insects is the main principle of current insect killer lamps. However, insecticidal lamps and mosquito killing lamps on the market currently use monochromatic light without flickering, and mostly use fluorescent tubes as light sources. Such methods have an unsatisfactory effect of attracting insects and are easily damaged.

Contents of the invention

The object of the present invention is to provide a method and device for attracting insects by variable frequency LEDs with different duty ratios, which has good insect attracting effect and is not easy to be damaged.

The present invention is realized in this way: different duty ratio variable frequency LED insect trapping methods output a rectangular square wave through a single-chip microcomputer, the frequency and duty ratio of the rectangular square wave can be adjusted, and the rectangular square wave is used as a control signal to control two The above LED lamp beads flash according to the duty cycle and frequency of the rectangular square wave, so as to attract insects.

The frequency conversion range of the rectangular square wave is 11.11~15.38Hz; the duty ratio is 2:3.

The LED insect trap includes a controller, the controller is connected with an amplifying circuit, the amplifying circuit is connected with a lamp post, and the power supply is connected with the controller and the amplifying circuit; white LED lamp beads and purple LED lamp beads are arranged on the lamp post.

The quantity ratio of the white LED lamp beads to the purple LED lamp beads is 1:4.

On the lamp post, every three white LED lamp beads or purple LED lamp beads form a group, which are connected in series with a resistor with a resistance value of 90-100Ω, and then connected in parallel with each other.

Due to the adoption of the above technical solution, the present invention uses a rectangular square wave with variable duty ratio and frequency as the control signal to control two or more LED lamp beads to flash according to the duty ratio and frequency of the rectangular square wave. On the one hand, Due to the difference in on-off time, energy can be greatly saved, and the highest energy-saving can exceed 50%; , the effect of flickering at 45~65ms is better than other flickering frequencies. Therefore, on the one hand, it takes advantage of the stronger phototaxis of insects to flashing lights to improve the effect of attracting insects. Both the insect trap range and the insect trap effect have been greatly improved. Since LED lamp beads are more skilled than ordinary incandescent lamps and energy-saving lamps, and are not easily damaged even under flickering conditions, it is in line with the country's development of circular economy, energy saving and consumption reduction as an important method of sustainable development. Reducing the cost of the government's use of public utilities can be strongly supported by the government. The method of the invention is simple, easy to implement, low in cost and good in use effect.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural schematic diagram of the lamp post of the present invention;

Fig. 3 is a schematic circuit diagram of the lamp post of the present invention;

FIG. 4 is a schematic circuit diagram of the amplifying circuit of the present invention.

Detailed ways

Embodiment of the present invention: different duty ratio frequency conversion LED insect trap method, output rectangular square wave through single-chip microcomputer, the frequency and duty ratio of the rectangular square wave can be adjusted, use the rectangular square wave as a control signal to control two or more The LED lamp beads flash according to the duty ratio and frequency of the rectangular square wave, so as to attract insects; the frequency conversion range of the rectangular square wave is 11.11~15.38Hz; the duty ratio is 2:3.

The structure of the LED insect trap is shown in Figure 1, including a controller 1, the controller 1 is connected to the amplifier circuit 2, the amplifier circuit 2 is connected to the lamppost 4, and the power supply 3 is connected to the controller 1 and the amplifier circuit 2; There are white LED lamp beads 4-1 and purple LED lamp beads 4-2; the ratio of the number of white LED lamp beads 4-1 to purple LED lamp beads 4-2 is 1:4; every 3 white LED lamp beads Lamp beads 4-1 or purple LED lamp beads 4-2 form a group, which are connected in series with a resistor R with a resistance value of 90-100Ω, and then connected in parallel with each other.

In this embodiment, the single-chip microcomputer model used by the controller 1 is STC15K2K32S2-LQFP32, and the circuit diagram of the amplifier circuit 2 is shown in the figure. The connection methods of the above-mentioned components are all known to those skilled in the art, and will not be repeated here.

In order to verify the technical effect of the present invention. The applicant has carried out the following experiments:

From July to September 2014, in Huaxi District, Guizhou, the lamps were self-made experimental lamps

Three sets of experiments were carried out:

(1) Comparing the effect of attracting insects between the composite LED test lamp post and the traditional black light

Insect trap time 2 hours, quantity: black light: 107, 82, 94 composite LED lamp posts: 112101107 are better than black light

(2) Different flickering frequencies drive insect trap time: One hour is one group, 21 groups of tests (only one group of tests per night: 20:00~21:30 for tests), the data are as follows:

It can be seen that the insect trapping scheme using a specific flicker frequency can achieve better insect trapping effect.

The description of the present invention is not limited to the examples described in the specific implementation manners. Those skilled in the art can derive other implementation manners according to the technical solutions of the present invention, which also belong to the technical innovation scope of the present invention. It is obvious that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their technical equivalents, the present invention also intends to include these modifications and variations.

Claims (5)

1. a different duty frequency conversion LED lures worm method, it is characterized in that: export rectangle square wave by single-chip microcomputer, this rectangle side's wave frequency and dutycycle all adjustable, utilize this rectangle square wave as control signal, control two or more LED lamp bead according to rectangle square wave duty when frequency glimmer, thus realize luring insect.

2. different duty frequency conversion LED according to claim 1 lures worm method, it is characterized in that: the variable frequency range of rectangle square wave is 11.11 ~ 15.38Hz; Dutycycle is: 2:3.

3. a LED moth-killing device, comprises controller (1), it is characterized in that: controller (1) is connected with amplifying circuit (2), and amplifying circuit (2) is connected with lamppost (4), and power supply (3) is connected with controller (1) and amplifying circuit (2); Lamppost (4) is provided with white led lamps pearl (4-1) and purple LED lamp bead (4-2).

4. LED moth-killing device according to claim 1, is characterized in that: described white led lamps pearl (4-1) is 1:4 with the number ratio of purple LED lamp bead (4-2).

5. the LED moth-killing device according to Claims 2 or 3, it is characterized in that: on described lamppost (4), every 3 white led lamps pearls (4-1) or purple LED lamp bead (4-2) are one group, and the resistance (R) being 90-100 Ω with a resistance value is connected, more in parallel each other.