Navel orange surface drying monitoring method and device based on infrared thermal imaging technology

Abstract

The invention relates to a navel orange surface drying monitoring method and a device based on the infrared thermal imaging technology. The device consists of a drying box 1, rollers 9 and 10, speed regulating motors 7 and 8, resistance wires 4, a draft blower 5, a controller 6, an infrared thermal imager 2, a computer and image processing software. The method comprises the following steps: sending navel oranges into the drying box after cleaning and waxing, and exciting the navel oranges by an external heating system while constantly rolling the navel oranges under the drive of the rollers; and adopting the infrared thermal imager to monitor infrared radiation information on the surfaces of the navel oranges, carrying out image processing and curve fitting, using a computer to precisely regulate and control a driver and a heating device, and further leading the temperature on the surfaces of samples to be dried to be more uniform. The method and the device introduce and apply the thermal infrared optical detection and the temperature monitoring means in the navel orange drying monitoring control process, thereby preventing the over-heat injuries or the residual water phenomenon on the surfaces of the navel oranges and creating conditions for the follow-up standard classification of the navel oranges. The method and the device are applicable to the post-production drying monitoring treatment of the navel oranges, as well as the post-production drying monitoring treatment of other fruits.

Description

technical field [0001] The invention relates to a method and device for monitoring the surface drying of navel oranges based on infrared thermal imaging technology, and belongs to the technical field of post-production processing control of agricultural and forestry products. Background technique [0002] Navel oranges are high in quality, seedless, juicy, bright in color, rich in nutrition, and contain various nutrients necessary for the human body. The production of navel oranges has strict requirements on the climate. There are very limited places in the world that can produce navel oranges. They are mainly concentrated in California in the United States with a Mediterranean climate, Spain in Europe, South Africa and Australia in the southern hemisphere, and southern Hunan-Northern Guangxi-Southern Jiangxi in China. [0003] Before entering the circulation, navel oranges generally need to undergo scientific testing, strict cleaning, waxing, drying, screening, grading, sta...

AI Technical Summary

Problems solved by technology

Due to the lack of effective state monitoring of the fruit inside the drying box commonly used at present, it often causes overheating damage or even peculiar smell on the surface of some fruits, while a large amount of water remains on the surface of some fruits, and the waxy layer is incomplete. Cause rot, causing great hidden dangers to the future storage and sales of navel oranges

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