Handheld orange quality nondestructive detector and optimal harvesting time prediction method

Abstract

The invention discloses a handheld orange quality nondestructive detector, which comprises a shell 1, and a light source emitter 2, a spectrum detector 4, a microprocessor 5, a light source 7 and a power supply device 8 which are fixed on the shell 1, the light source 7 is arranged at the bottom of the light source emitter 2, one end of the spectrum detector 4 is connected with the microprocessor 5 through a connecting wire 10, and an optical fiber probe 3 is led out from the other end of the spectrum detector 4; the handheld orange quality nondestructive detector further comprises a stepping motor 6, a lens 9 and an optical shutter 11, the output end of the stepping motor 6 is fixedly connected with the tail end of the optical shutter 11, and the light source 7, the light source emitter 2 and the optical fiber probe 3 are kept coaxial and in the same direction. The light source emitter 2 and the optical fiber probe 3 are kept coaxial and in the same direction, shadows are formed in an orange detection area, and the influence of stray light is avoided; The optical fiber probe 3 integrating the optical fiber probe 3, the light source 7 and the optical shutter 11 is designed, the distance between the optical fiber probe 3 and the orange is optimized, and the influence of orange skin mirror surface reflected light is avoided. The optimal harvesting time prediction method disclosed by the invention can predict the optimal harvesting time of the oranges.

Description

technical field [0001] The invention belongs to the technical field of fruit non-destructive testing, and in particular relates to a hand-held citrus quality non-destructive testing instrument and a method for predicting optimal harvest time. Background technique [0002] Maturity is an important index for evaluating fruit quality, and it is also the main basis for forecasting the harvest period. The different degrees of fruit maturity will seriously affect its overall quality and greatly reduce its market competitiveness. The national standard requires that the ripeness of citrus fruits should reach an appropriate level for consumption. But this appropriate degree is difficult to grasp, and there are large individual differences in the perception of fruit taste by different inspectors. According to the definition of GB / T 12947-2008 fresh citrus, the degree of maturity refers to the appropriate ripeness of the fruit for consumption. That is, the fruit should be picked at ...

AI Technical Summary

Problems solved by technology

[0003] my country is a big producer of citrus fruits, but the chain of sales channels is not perfect. Citrus is not easy to store and is easily affected by the climate. The time of harvesting often depends on experience. The size and color of the fruit of a variety can be used to judge the internal quality of the fruit

Causes citrus fruits to vary in maturity, which seriously affects the overall quality and reduces the market competitiveness of citrus fruits

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