On-line detection device for fruit quality

Abstract

The invention discloses an on-line detection device for fruit quality. A tested fruit is placed on a weight tray unit; the tested fruit and the weight tray unit are placed together on a conveying unitconsisting of upper and lower horizontal double-speed chains and left and right lifting cylinders matched with each other; the weight tray unit breaks away from the double-speed chains through blockage of a blocking cylinder and the lifting of the lifting cylinders to enter a detection state when passing through a detection position; the tested fruit is excited to vibrate by a small ball excitation unit; laser light is projected onto the surface of the vibrating fruit by a laser Doppler vibrometer to acquire vibration signals of the tested fruit; and the blocking cylinder is in a release state to ensure that a tooling plate falls onto the conveying unit again, and a reversible motor sends the weight tray unit into an unloading area to take out the tested fruit. The on-line detection device provided by the invention can realize on-line detection of fruit quality, improve the accuracy and speed of on-line detection of fruits, is suitable for on-site detection and can be classified according to fruit quality.

Description

technical field [0001] The invention relates to a fruit quality detection device, in particular to an online fruit quality detection device. Background technique [0002] With the development of agricultural production technology, the consumption and output of fruits continue to increase every year. At the same time, people pay more and more attention to the quality of flavor, taste and freshness when buying fruits. Accurate identification of fruit quality has become a common concern of consumers and sellers. Focus. Relevant studies have shown that during the fruit ripening process, the hardness of the fruit is closely related to its storage time. Vibration detection technology can obtain the hardness information of the fruit, and then determine the appropriate shelf life and storage period of the fruit. [0003] At present, the related vibration detection methods include pendulum ball tapping method, loudspeaker excitation method and compressed air excitation method. In a...

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is to provide an online detection device for fruit quality, which can realize the function of online fruit quality and solve the problem that traditional detection methods are easily disturbed by the environment. Detect fruit quality, and improve the accuracy and speed of fruit online detection

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