Precise targeted spraying and weeding device

An accurate and medicine-box technology, applied in the device, application, animal husbandry, etc. of catching or killing insects, can solve the problems of inability to realize real-time field information collection and inconvenient operation, so as to improve the automation level of weeding, reduce the amount of weeding, reduce the The effect of labor intensity

Inactive Publication Date: 2011-02-02
JIANGSU UNIV
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Problems solved by technology

The variable spraying device needs to collect the location and density information of weeds in the field in advance to make a prescription map, and then transmit the prescription map information to the controller, which controls the solenoid valve to realize variable spraying.

Method used

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  • Precise targeted spraying and weeding device
  • Precise targeted spraying and weeding device
  • Precise targeted spraying and weeding device

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Embodiment Construction

[0022] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and examples.

[0023] Farmland information collection and processing system: such as figure 1 , 2 , 4, using CCD camera 15, DSP processor 2 containing video decoding chip SAA7111, CPLD, high-speed readable and writable memory SDRAM and buffer to complete image acquisition and processing.

[0024] Gather a frame of PAL video image in the field by CCD camera 15, utilize the video decoding chip SAA7114 that DSP processor 2 is carried to convert analog video data into digital video data, store image data in SDRAM by CPLD, DSP processor 2. Perform algorithmic processing on the collected images. In terms of algorithm design, the super green feature and the maximum inter-class variance method are used to segment the background; the shape feature, skeleton feature and planting information of the crop are fused to identify crops and weeds. Then deter...

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Abstract

The invention belongs to the field of agricultural plant protection machinery, and provides a precise targeted spraying and weeding device. The spraying and weeding device comprises a farmland information acquisition and processing system, a spraying system and a control system. The spraying and weeding device finishes acquisition and processing of images in real time and identifies crops and weeds; a DSP (digital signal processor) sends weed positions and density information acquired after the images are processed to an ARM (advanced RISC machine) processor; and the ARM processor realizes combination of different spray heads and opening of an electromagnetic valve by combining the received speed, flow and pressure information and controlling so as to perform precise targeted spraying on the weeds. By adopting a targeted spraying weedicide mode, the device reduces weeding labor and consumption of pesticide, saves the cost and relieves the pollution of the pesticide to the environment.

Description

technical field [0001] The invention belongs to the field of agricultural plant protection machinery and relates to a precise target spraying and weeding device. Background technique [0002] Field weeds are the enemy of agricultural production. Chemical weeding is an economical, efficient, timely and labor-saving measure to control field weeds. At present, chemical weeding has become an indispensable technical element in agricultural production. Herbicides need to be weeded by spraying machinery, and the performance of spraying machinery is very important. The knapsack manual sprayer is poor in material, easily damaged, low in pressure, serious in leakage, and low in spraying efficiency. All kinds of boom-type motorized sprayers equipped in large-scale planting areas also use the same spraying treatment on the premise of the same occurrence of weed damage in the farmland. This practice of ignoring the difference in the occurrence of weed damage in the field will lead to T...

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Application Information

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IPC IPC(8): A01M7/00
Inventor 陈树人尹东富毛罕平尹建军裴文超
Owner JIANGSU UNIV
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