RFID Nozzle Identification for Agricultural Sprayer Drift Control
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Solution Overview
Problem
Agricultural spraying operations face challenges in minimizing environmental pollution due to uncontrolled drifting of chemical substances caused by wind, soil and water contamination, and undesirable side effects from chemical use, necessitating accurate nozzle positioning and material distribution to comply with regulations.
Innovation Solution
An agricultural machine equipped with a system that identifies the active nozzle on a spray boom assembly using RFID transponder tags and a reader assembly, allowing for automatic or manual rotation of nozzles into position, and adjusts sprayer settings based on nozzle characteristics and specific spraying requirements, including boom height, spray pressure, and drift.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If chemical substances are sprayed over a field to increase agricultural yield, then crop productivity is improved, but environmental pollution and soil contamination occur
Solution Approach 1:
The system uses RFID tags on nozzles and a reader assembly to automatically identify and track which nozzles are in active positions. This feedback mechanism ensures that only authorized and properly configured nozzles dispense chemicals, preventing unauthorized spraying and enabling real-time monitoring of chemical application to comply with environmental regulations.
Solution Approach 2:
The patent replaces manual nozzle identification and verification with an automated electronic identification system using RFID technology. The reader assembly automatically detects transponder tags on nozzles, eliminating the need for manual checking and reducing human error in verifying nozzle authorization and configuration.
2Area of stationary object
If wind causes uncontrolled drifting of chemical substances during spraying, then chemical coverage area increases, but pollution and crop damage increase
Solution Approach 1:
The system monitors nozzle positions and active states in real-time, providing feedback to ensure chemicals are applied only to authorized target areas. This prevents uncontrolled drifting to unauthorized crops or areas by verifying nozzle authorization and tracking their operational status throughout the spraying process.
3Device complexity
If manual nozzle identification and configuration is used, then system complexity is reduced, but time consumption and operational efficiency decrease
Solution Approach 1:
The system enables automatic self-identification of nozzles through RFID tags. When a nozzle is placed in an active position, the reader assembly automatically detects its transponder tag and retrieves identification information, eliminating the need for manual intervention. This self-service mechanism significantly reduces time consumption while maintaining relatively simple system architecture.
4Productivity
If automated nozzle identification system is implemented, then operational efficiency is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex manual identification procedures with a simple RFID-based electronic identification system. The transponder tags on nozzles and the reader assembly provide automated identification using well-established RFID technology, achieving high operational efficiency without requiring complex custom-built identification mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system ensures compliance with regulations by accurately identifying and configuring nozzles in real-time, reducing environmental pollution and optimizing spraying operations by varying settings according to nozzle position and characteristics, thereby enhancing operational efficiency and safety.
Implementation Method 1
The transponder tag may be a passive radio frequency identification (RFID) tag... The reader assembly is configured to emit electromagnetic waves through the antenna to receive information from a particular transponder tag. Furthermore, the transponder tag is configured to receive the electromagnetic waves and generate a signal back to the reader assembly
Data Source
AI summary
An agricultural machine includes a chassis, a liquid tank, a spray boom assembly, and a conduit. A nozzle body including a plurality of nozzles is located on a bottom side of the boom. A transponder tag is placed on each nozzle of the nozzle body and includes specific information regarding characteristics of the respective nozzle. A reader assembly emits electromagnetic waves through an antenna to receive information from a particular transponder tag. The transponder tag receives the electromagnetic waves and generates a signal that includes the specific information. Each nozzle is movable into an active position by rotation of a nozzle turret. The reader assembly is located such that a transponder tag of a nozzle enters communication range when the nozzle is placed in the active position. A controller receives the specific information and identifies characteristics of the nozzle in the active position.