Agricultural Sprayer UAV for Dynamic Overspray Detection
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Solution Overview
Problem
Current agricultural sprayer systems face challenges in detecting and quantifying overspray beyond field boundaries, especially for substances that are not visible, and require costly and cumbersome fixed sensing apparatuses that need to be reconfigured if field boundaries change.
Innovation Solution
A mobile agricultural sprayer system that includes a frame, tank, and spraying mechanism, along with an unmanned aerial vehicle (UAV) equipped with a substance sensor, which detects wind speed, direction, and field boundaries to identify likely overspray conditions and deploy sensors to monitor areas, generating control signals to adjust the UAV's position and perform overspray operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed sensing apparatuses are used to detect overspray, then detection reliability is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces fixed mechanical sensing apparatuses with a mobile sensor platform (UAV) that can dynamically position itself. The UAV carries sensors to detect spray substance presence in monitor areas, eliminating the need for complex fixed infrastructure while maintaining detection reliability through mobile monitoring capabilities.
2Difficulty of detecting and measuring
If fixed sensing apparatuses are deployed, then overspray detection capability is improved, but adaptability to changing field boundaries deteriorates
Solution Approach 1:
The system transitions from static fixed sensors to a dynamic mobile UAV platform that can reposition itself. The UAV receives updated field boundary information and autonomously navigates to appropriate monitor areas, enabling the system to adapt to changing field boundaries without requiring physical reconfiguration of sensing infrastructure.
Solution Approach 2:
The patent introduces a control system that acts as an intermediary between field boundary data and the mobile sensor. This control system processes boundary information and generates navigation commands for the UAV, enabling flexible adaptation to boundary changes through software rather than hardware reconfiguration.
3Adaptability or versatility
If mobile sensors are used, then adaptability to field boundaries is improved, but measurement precision may deteriorate
Solution Approach 1:
The system implements feedback mechanisms where the UAV continuously reports sensor readings to the control system, which compares measurements against expected values. This feedback loop enables real-time calibration and quality control, maintaining measurement precision despite the mobile platform's inherent motion and positioning variations.
Data Source
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AI summary
Wind speed, wind direction, and field boundary information are detected and used to identify a monitor area indicative of a likely overspray condition. Control signals are generated to deploy an unmanned aerial vehicle (UAV), with a sprayed substance sensor, to the monitor area. The UAV is controlled to reposition it, as a spraying machine moves through the field being sprayed. When an overspray condition is detected, an overspraying signal from the UAV indicating the detected overspray condition is received and overspray processing is performed, based upon the received overspray signal.