Laser weeder
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA UNIV OF PETROLEUM (EAST CHINA)
- Filing Date
- 2026-04-13
- Publication Date
- 2026-06-02
Smart Images

Figure FT_1
Abstract
Description
Technical Field
[0001] This invention relates to the field of agricultural machinery technology, specifically to a miniature device that uses laser technology for weeding. Background Technology
[0002] In agricultural production, weeds compete with crops for nutrients, water, and sunlight, affecting their normal growth. Therefore, weeding is an essential part of agricultural production. Traditional manual weeding methods are inefficient, and chemical herbicides cause environmental residue problems. With the development of agricultural mechanization, laser weeding technology has been gradually applied. However, some existing laser weeding devices have relatively complex structures and are bulky, lacking flexibility for use in small plots or facility agriculture environments. Their image acquisition and processing processes are also not simple enough, failing to meet the needs of simple, convenient, and low-cost weeding operations. Therefore, proposing a simplified micro-laser weeding machine has practical application significance. Summary of the Invention
[0003] The purpose of this invention is to provide a miniature laser weeding machine to solve the problems of complex structure and insufficient flexibility in use of existing laser weeding equipment. This invention adopts a structure combining a main frame, a laser module, a vision acquisition module, and a control module, resulting in a compact overall layout and small size. During operation, the vision acquisition module acquires field images, the control module processes the image information, identifies the location of weeds, and then controls the laser module to operate, using laser energy to remove weeds. The overall operation process is simple, capable of completing routine weeding operations, and suitable for various small-scale agricultural scenarios.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a miniature laser weeding machine, comprising a main frame, a laser module, a vision acquisition module, and a control module. The vision acquisition module includes a gimbal and a camera; the gimbal supports and stabilizes the camera, and the camera acquires field image information. The control module is connected to both the laser module and the vision acquisition module to realize signal reception, data processing, and motion control. Attached Figure Description
[0005] Figure 1 is a schematic diagram of the workflow of the present invention, mainly showing the complete working process of the device from startup initialization, image acquisition, recognition processing to laser weed removal. Detailed Implementation
[0006] The present invention will be further described in detail below with reference to specific embodiments. The miniature laser weeding machine of the present invention is based on a main frame, on which the laser module, vision acquisition module, and control module are all mounted, forming an integrated structure. After the device is powered on, the system first enters the power-on initialization state, completing self-checks and parameter configurations for each module to ensure that all components are in normal working mode.
[0007] After initialization, the visual acquisition module begins operation, with the camera continuously capturing images of the field environment. The gimbal provides stable support for the camera, reducing the impact of external environmental vibrations on image acquisition and ensuring a smooth acquisition process. The camera transmits the acquired image data to the control module, which receives and processes the image data, distinguishes weed areas according to preset logic, and determines the target location for weeding.
[0008] After the control module completes image recognition and positioning, it sends control commands to the laser module. Upon receiving the commands, the laser module starts working, outputting laser light at the designated location to complete a single weeding action. After the weeding action in the current area is completed, the system automatically determines whether to continue the operation. If the operation in the entire area has not been completed, it returns to the image acquisition step and continues the loop; if the operation has been completed, the system stops working, and the overall process ends.
[0009] The invention has a simple overall structure, clear division of labor among modules, and stable operation. It can realize basic laser weeding function with a simplified structure. It is suitable for routine weeding operations in various scenarios such as farmland and greenhouses. It is flexible in use, convenient in maintenance, and has certain practical value.
Claims
1. A laser weeding machine, characterized in that, It includes a main frame, a laser module, a vision acquisition module, and a control module; the vision acquisition module includes a gimbal and a camera mounted on the gimbal; the control module is connected to the laser module and the vision acquisition module respectively, and is used to control the laser module to perform weeding actions.
2. The laser weeding machine according to claim 1, characterized in that, The main frame is made of a combination of sheet metal and profiles.
3. The laser weeding machine according to claim 1, characterized in that, The laser module includes a laser and an actuator for performing laser scanning.
4. The laser weeding machine according to claim 1, characterized in that, The gimbal is equipped with sensing elements.
5. The laser weeding machine according to claim 1, characterized in that, The control module includes at least one control board and corresponding sensing components.