Visible-near infrared spectrum transmission type fruit quality on-line detection and sorting production line

Abstract

The invention provides a visible-near infrared spectrum transmission type fruit quality on-line detection and sorting production line. The production line comprises a mechanical conveying device, a visible-near infrared spectrum detection device and a sorting control device, wherein the mechanical conveying device conveys fruits into a detection area of the visible-near infrared spectrum detectiondevice; the visible-near infrared spectrum detection device deals with detection results and transmits the detection results to the sorting control device through pulse signals; and the fruits are sorted by turning fruit trays of the mechanical conveying device sideways.

Description

Technical field [0001] The invention relates to on-line detection and sorting of internal sugar acidity of fruits, belonging to the technical field of on-line non-destructive detection and sorting of fruits. Background technique [0002] With the development of my country’s economy this year, the improvement of consumers’ living standards, and the changes in consumers’ dietary concepts, people no longer pay attention to external qualities such as appearance, shape, size, and color when buying fruits, but also consider the internal quality of fruits. It is also used as a reference standard, such as sugar content, acidity, vitamin content and other indicators. At present, some developed countries in foreign countries sort fruits according to internal and external quality immediately after they are picked. For example, some well-known fruit production companies in Japan and the United States use the best quality in addition to the size and appearance of the fruits. The quality of in...

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Problems solved by technology

In contrast, in China, the use of near-infrared spectroscopy in the quality detection of agricultural products is mainly concentrated in the laboratory research stage, and there are few reports on dynamic online non-destructive testing devices that can sort fruits and vegetables for sugar content, acidity, origin, etc. Most of the high-precision Laboratory instruments also have the disadvantages of high testing costs, high environmental requirements, and long testing time. Not only are they not suitable for high-speed production lines, but they are also unable to sort large-volume fruits and vegetables. In addition, the expensive equipment also makes many fruit farmers overwhelmed.

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