Small-sized inter-row weeding robot for paddy fields

Abstract

The invention belongs to the field of agricultural robots, in particular to a small-sized inter-row weeding robot for paddy fields, which comprises a chassis, a drive system, a control system, a sensing system, a weeding device and a power source. A drive motor drives a spindle to rotate so as to drive paddle wheels, and the paddle wheels rotate at different speeds to turn the robot. A direct current motor drives a weeding disc blade to rotate to cut off inter-row weeds on a paddy field. Silt generated in travelling of the paddle wheels covers the weeds among plants to inhibit the inter-plant weeds. After a limit switch contacts with rice plants, a single chip microcomputer controls the left motor and the right motor to rotate at different speeds so as to lead the weeding robot to turn and avoid the plants. When a pressure sensor touches a ridge, the single chip microcomputer controls the drive motor to rotate reversely and the weeding robot continues operating in the opposite direction. The sensing system is capable of measuring information such as paddy field water temperature, plant amount and the like. The small-sized inter-row weeding robot for paddy fields is operated in a mechanical weeding mode, so that usage of pesticides and weeding labor are reduced, environment pollution by the pesticides is lessened, and cost is saved. The small-sized inter-row weeding robot for paddy fields is small in size and light in weight.

Description

technical field [0001] The invention relates to the field of agricultural robots, in particular to a small paddy field weeding robot. Background technique [0002] Rice is one of the main food crops. People pay more and more attention to the quality and safety of rice production and dietary health. There is an upsurge of planting "green rice" in China; mechanical weeding is regarded as the most important step in the process of "green rice" The best weeding method is a key technology for sustainable agricultural development; foreign countries began to study mechanical weeding technology in the 1950s. Tillett et al. designed a cultivating mechanical weeding robot based on visual navigation, which can collect data through a camera. After image processing, the navigation path is obtained and automatic navigation and weeding are carried out; the mowing robot researched by Fuji Heavy Industries of Japan uses RTK-GPS to determine its own position, and the error radius is less than ...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings and deficiencies of the above-mentioned prior art, the purpose of the patent of the present invention is to provide a small weeding robot for paddy fields, which can solve the problem of early weed control in existing paddy fields, agitate the soil layer through disc blades, and realize paddy field plant growth. The removal of the space; the silt generated when the paddle wheel walks covers the roots of the plants, inhibits the growth of weeds, and can remove weeds in the row to meet the purpose of robot intelligent weeding

Images