Seed-Referenced Material Placement With Sensing Feedback
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Solution Overview
Problem
Current agricultural systems apply materials, such as fertilizers and pesticides, in a continuous manner, leading to inefficiencies and waste, particularly at locations between seeds or plants, resulting in lower productivity and efficiency.
Innovation Solution
An agricultural system that identifies a reference position, such as a seed location, and controllably dispenses material based on this position, using sensors to detect the application location and generate control signals for precise application, allowing for variable application rates and patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If material is applied in a continuous manner, then the application process is simple and uninterrupted, but material is wasted at locations between seeds or plants and productivity decreases
Solution Approach 1:
The continuous material application is segmented into discrete applications at specific seed locations. The system divides the field into individual seed positions and applies material only at these segmented locations rather than continuously across the entire field, reducing material waste between seeds.
Solution Approach 2:
The material application operates periodically based on seed detection signals rather than continuously. The system activates the material application valve periodically at intervals corresponding to seed spacing, creating a pulsed application pattern that eliminates waste while maintaining productivity.
2Productivity
If material is applied continuously, then the application process is straightforward, but efficiency and productivity are reduced due to waste
Solution Approach 1:
The system uses optical sensors to detect seed positions and provides feedback signals to control material application. This closed-loop feedback mechanism ensures material is applied only when and where seeds are detected, significantly improving application efficiency and reducing waste compared to continuous application.
Solution Approach 2:
The system replaces mechanical continuous application mechanisms with an optically-controlled valve system. Optical sensors detect seed positions and trigger electronic control signals that activate material application valves, substituting mechanical continuity with optically-guided precision application.
3Measurement precision
If sensors and control systems are added for precise material placement, then material waste is reduced and productivity improves, but device complexity increases
Solution Approach 1:
The optical sensor system serves multiple functions: it detects seed positions for precise material placement, provides timing signals for valve actuation, and can potentially monitor application quality. This multi-functionality reduces the need for separate systems and mitigates the complexity increase from adding precision measurement capabilities.
Data Source
AI summary
An agricultural system includes at least one processor and memory storing instructions executable by the at least one processor. The instructions, when executed, cause the agricultural system to identify a reference position on an agricultural surface, control a material application system to apply material to the agricultural surface based on the reference position, sense a characteristic of the agricultural surface after the material is applied to the agricultural surface, identify a location of the applied material based on the characteristic, identify an action based on the location of the applied material, and generate a control signal to perform the action.