Rapid fruit texture non-destructive detection method and detection device

Abstract

The invention discloses a rapid fruit texture non-destructive detection method and a non-destructive detection device. The detection method comprises the following steps: acquiring a modeling sample set; determining the quality; determining the fruit shape coefficient; acquiring vibration response data; extracting vibration characteristic parameters; performing dimension reduction on the vibration characteristic parameters; determining a texture index value; and building a texture prediction model and measuring. The detection device comprises a vibration control system and a vibration signal acquisition system. According to the detection method and the detection device, an impact vibration mode is adopted to greatly shorten the fruit texture detection time by use of the laser Doppler vibration measurement technology, multi-vibration characteristic parameters combined with the fruit quality and the fruit shape are used as input parameters of the prediction model, and the prediction accuracy and the adaptability of the model can be improved.

Description

technical field [0001] The invention relates to a fruit detection method and device, in particular to a fast and non-destructive fruit texture detection method and device. Background technique [0002] my country is a large agricultural country with huge fruit output every year. However, the export rate of fruit is still very low because the detection and grading technology after fruit production is still relatively backward. At the same time, with the development of our country and the continuous improvement of people's living standards, people's requirements for the internal quality of fruits are also getting higher and higher. Texture, as a key indicator for judging fruit taste and maturity, is widely used in fruit planting, post-harvest preservation, post-harvest processing, and food evaluation. [0003] The traditional fruit texture detection method uses the puncture method. The main step is to use a hand-held hardness tester to insert the indenter into the fruit to a ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the time-consuming problem of the existing laser Doppler vibrometer technology for fruit texture detection, the purpose of the present invention is to provide a fast and non-destructive fruit texture detection method and device, based on laser Doppler vibrometer technology, using shock vibration The method is used to quickly obtain the vibration information of the fruit, and at the same time combine the corresponding signal processing method and chemometrics method to establish a fruit texture prediction model to realize the rapid non-destructive detection of fruit texture

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