A multifunctional adaptive watermelon harvesting robot

By using a multifunctional adaptive watermelon harvesting robot that combines infrared and ultrasonic positioning, the robot uses a shovel assembly to pick up watermelons and cut vines, achieving fast, safe, and efficient watermelon harvesting and ripeness identification. This solves the problems of high positioning accuracy and inaccurate ripeness judgment in existing technologies, and improves harvesting efficiency and ripeness identification accuracy.

CN118120471BActive Publication Date: 2026-05-26WUHAN UNIV OF TECH
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Patent Information

Application Number
CN202410379420.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-03-29
Publication Date
2026-05-26
Estimated Expiration
2044-03-29

AI Technical Summary

Technical Problem

Most existing watermelon harvesting robots are grasping robots, which require high accuracy in recognition and positioning, resulting in low harvesting efficiency, and human judgment of watermelon ripeness is inaccurate.

Method used

The multifunctional adaptive watermelon harvesting robot includes a vehicle body, an identification and positioning module, a telescopic push-pull module, and a conveyor and labeling module. It uses a combination of infrared and ultrasonic waves for positioning, uses a lower shovel component to scoop up watermelons and cut vines, and an upper shovel component to cut vines. A conveyor belt detects ripeness and labels the watermelons, and a watermelon transport vehicle collects and transfers them.

Benefits of technology

It enables fast, safe, and efficient watermelon harvesting, reduces damage to watermelons, improves harvesting efficiency, and accurately identifies ripeness for classification and labeling, thus reducing operation time.

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Abstract

This invention provides a multifunctional adaptive watermelon harvesting robot, including a vehicle body, a recognition and positioning module, and a telescopic push-pull module. The vehicle body is used for position movement; the recognition and positioning module is located at the end of the vehicle body for locating the watermelon's position; the telescopic push-pull module is also located at the end of the vehicle body and includes an upper shovel assembly and a lower shovel assembly. The lower shovel assembly can extend to the ground to scoop up the watermelon, and the upper shovel assembly can move to cut the watermelon vines that have been scooped into it. This invention uses the recognition and positioning module for coarse positioning, combined with the lower shovel assembly to scoop up the watermelon close to the ground, eliminating the need for a lengthy precise positioning process. It can quickly grab the watermelon, and then the upper shovel assembly moves downward to close and cut the vines with the lower shovel assembly. This eliminates the need to search for the vines, quickly removes the vines, ensures the safety of the watermelon, maintains the integrity of the watermelon during harvesting, reduces operation time, and effectively improves the efficiency of watermelon harvesting.
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