Agricultural pest-expelling and growth-promoting sound wave generator

Abstract

The invention particularly relates to an agricultural pest-expelling and growth-promoting sound wave generator which comprises a direct-current power supply circuit, an induction circuit, a quartz crystal oscillator, a single-chip microcomputer, a loudspeaker circuit and an ultrasonic circuit, wherein the quartz crystal oscillator is connected with the single-chip microcomputer; the direct-current power supply circuit comprises a solar panel, an amplifying sub-circuit, a filtering sub-circuit, a storage battery protection sub-circuit, a storage battery and a voltage conversion circuit which are sequentially connected; the induction circuit comprises an illumination sensor and a temperature and humidity sensor which are respectively connected with the single-chip microcomputer; the loudspeaker circuit comprises a double-pulse generator connected with the single-chip microcomputer and a plurality of loudspeakers connected with the output end of the double-pulse generator; the ultrasonic circuit comprises an oscillating driving circuit connected with the single-chip microcomputer and a transducer connected to the output end of the oscillating driving circuit. By use of the technical scheme of the invention, the pest expelling and crop growth promoting can be realized, and the user selection range is increased.

Description

technical field [0001] The invention relates to the technical field of sound fertilizer devices, in particular to an agricultural sound wave generator for repelling insects and promoting growth. Background technique [0002] Pests and diseases in agricultural production seriously threaten the yield of crops. Traditional crop pest control methods have disadvantages such as harming the environment, high cost, low timeliness, and easy resistance of pests. Studies have shown that the use of acoustic resonance technology to control crop pests can not only overcome the above shortcomings, but also acoustic radiation is helpful to the growth of crops. [0003] Since the middle of the last century, the research on the mechanism of the effect of sound on plants has developed rapidly at home and abroad. Daniel in the United States systematically studied the mechanical properties of plant cell walls earlier, and expounded the relationship between external stress and cell growth. Lat...

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Problems solved by technology

[0004] The sound wave generators in the prior art are all mechanically controlled. The user places the sound wave generator on the field, and then realizes the output of the audio signal through the mechanical button on the sound wave generator. However, the applicable farmland area of ​​a sound wave generator is 1 to 500 mu, when the user inspects the growth of crops and the distribution of pests in such a large field, if he wants to adjust the frequency and intensity of the output signal of the acoustic wave generator, he must return to the location of the acoustic wave generator for adjustment. , and then go back to the field to verify the output effect of the audio signal, so going back and forth to the field consumes time and energy

[0005] In addition, the speaker arrays of the sound wave generators in the prior art are all integrated in the sound wave generator. By setting the sound output direction of the speaker array, the output of audio signals in all directions is realized, which will cause the crops near the sound wave generator The intensity of the received audio signal is relatively large, and the intensity of the audio signal received by the crops far away from the sound wave generator is relatively small. The growth and development of crops in the same farmland are different due to the received audio signal intensity.

[0006] Furthermore, in the prior art, there are few types of sound wave generators suitable for agricultural production and deworming and the price is expensive, and the user's selection range is relatively small.

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