Combined type plant audio frequency regulation and control method

Abstract

The invention discloses a combined type plant audio frequency regulation and control method. The method comprises the following steps: 1) a combined type audio frequency loaded in a regulation and control environment is tested and analyzed for frequency response, and the sound pressure distributions of the combined audio frequency at different frequency points or frequency bands are confirmed; 2)wavelet comparison is conducted on the wavelet transform results of discrete combined audio frequency signals and expected output combined audio frequency signals, and the differences of the wavelet transform results of the discrete combined audio frequency signals and the expected output combined audio frequency signals at the frequency points or the octave frequency bands are acquired accordingto the wavelet comparison results of the sound pressure distributions at the frequency points or the frequency bands; and 3) according to the differences of the wavelet transform results of the discrete combined audio frequency signals and the expected output combined audio frequency signals at the frequency points or the octave frequency bands, the output voltages of a sound generator at the frequency points or the octave frequency bands are corrected, so that the sound pressures at the frequency points or the frequency bands of the combined type audio frequency can meet the requirements setby a plant audio frequency test. The method achieves the accurate sound energy distributions at the frequency points or the frequency bands of the combined type audio frequency in the sound wave regulation and control environment, and reduces the influence on audio frequency output from the poor frequency response effect of a loudspeaker or the reciprocating reflection of sound waves and materialabsorption in a facility environment.

Description

technical field [0001] The invention relates to an audio frequency control method, in particular to a combined plant audio frequency control method. Background technique [0002] As one of the emerging high-tech of modern physical agriculture, audio frequency control technology mainly realizes the high yield and high quality of agricultural products through the control of sound waves in the biological growth environment. Studies have shown that different frequencies and intensities of sound waves have different effects on plant growth. The growth-promoting effect of sound waves on crops depends critically on the regulation of sound frequencies in the environment. [0003] The frequency of the sound wave and the corresponding sound frequency intensity are the key factors affecting the growth-promoting effect of the sound wave. Therefore, for the application of the plant sound frequency control technology in modern physical agriculture, it is very important to realize the acc...

AI Technical Summary

Problems solved by technology

However, the current existing plant audio control method adopts an open-loop method, that is, a certain sound file is used as a sound source to output to the sound generator (speaker). The back and forth reflection of sound by facilities and the absorption of different audio frequencies by facility materials make the actual audio information more distorted, resulting in a large difference between the loaded combined audio frequency and the originally expected combined audio frequency, which affects the audio frequency to a certain extent. Growth-stimulating effect of crops

Images