Adaptive Treatment Buffers for Uncertain Plant Targeting
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Solution Overview
Problem
Conventional farming machines face challenges in precisely and accurately applying treatment compounds to plants due to unreliable sensor data and varying terrain, leading to wasteful distribution and misapplication of treatments.
Innovation Solution
A farming machine dynamically adjusts a treatment buffer based on uncertainty measurements of its spatial relationship with plants, using image processing and sensor signals to target plants with high fidelity, applying treatments to both the plant and a buffer zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If treatment compounds are broadly distributed across the field, then the treatment coverage is improved, but the treatment precision deteriorates and resource waste increases
Solution Approach 1:
The system applies different treatment strategies to different spatial zones: a core treatment zone with high precision targeting the identified plant, and an extended treatment buffer zone with reduced precision for surrounding areas. This local differentiation allows simultaneous achievement of precise target treatment and adequate coverage area.
Solution Approach 2:
The system intentionally applies treatment to an area larger than the exact plant location by incorporating a treatment buffer zone. This partial excess action ensures that the target plant is definitely covered while accepting some treatment of surrounding areas, thus achieving both coverage and precision.
2Manufacturing precision
If treatment is precisely targeted to individual plants, then the treatment precision is improved, but the treatment coverage deteriorates and reliability worsens due to positioning uncertainty
Solution Approach 1:
The system pre-compensates for positioning uncertainty by adding a treatment buffer zone around the identified plant location. This cushioning approach ensures that even if the actual plant position differs from the measured position, the treatment will still be effective, thus maintaining precision while accounting for uncertainty.
Solution Approach 2:
The system dynamically adjusts the treatment buffer zone size based on the uncertainty measurement of the plant position. When positioning uncertainty is high, the buffer zone is enlarged; when uncertainty is low, the buffer zone is reduced. This parameter adaptation allows the system to maintain optimal precision-coverage balance under varying conditions.
3Productivity
If automated farming machines are used, then the productivity is improved, but the reliability deteriorates due to frequent sensor data issues and operational failures
Solution Approach 1:
The system continuously monitors the reliability of sensor data and image processing results, and uses this feedback to dynamically adjust the treatment buffer zone. When data reliability is low, the buffer is enlarged to compensate for potential positioning errors; when reliability is high, the buffer is reduced for more precise treatment.
Solution Approach 2:
The system automatically detects and compensates for its own positioning and identification errors through the uncertainty measurement and adaptive buffer adjustment mechanism, reducing the need for external intervention and maintaining reliable operation despite sensor imperfections.
Data Source
AI summary
As a farming machine travels through a field of plants, the farming machine accesses an image of a field including a plant and receives sensor signals from one or more sensors coupled to the farming machine. The farming machine applies the image and sensor signals to a computer model to determine a spatial relationship between a treatment mechanism of the farming machine and the plant. Determining the spatial relationship produces an uncertainty measurement for an expected position of the treatment mechanism respective to an expected position of the plant. The farming machine adjusts a treatment buffer based on the uncertainty measurement. The farming machine treats the plant in the field by applying the plant treatment to the plant based on the treatment buffer.