Omnidirectional Farming System with Electric Propulsion
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Solution Overview
Problem
Current self-propelled irrigation systems are complex, energy-inefficient, and cause structural fatigue due to numerous components, leading to uneven irrigation and erosion, and are limited to irrigation applications with fixed height A-frames that struggle on non-flat terrain.
Innovation Solution
A farming system with a field engagement unit featuring a support assembly, omnidirectional propulsion units, and actuatable work tool assemblies, including material storage containers, controlled by local and central processors for coordinated actions, enabling versatile agricultural functions and adjustable height for varied terrain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional self-propelled irrigation systems use mechanical drive systems with gearboxes and drivelines, then the system can be cost-effective, but the system becomes complex with low reliability and high energy consumption
Solution Approach 1:
The patent replaces traditional mechanical drive systems (gearboxes, drivelines) with electric motors that directly drive the irrigation towers. This substitution eliminates complex mechanical transmission components while maintaining propulsion capability, thereby reducing system complexity and improving reliability without sacrificing cost-effectiveness.
Solution Approach 2:
The irrigation system is divided into multiple independent spans, each with its own electric motor and control system. This segmentation allows each module to operate independently, simplifying the overall system architecture and reducing the complexity of mechanical linkages between components.
2Force
If the irrigation system uses a heavy mechanical propulsion system, then it can provide sufficient driving force, but it creates deep ruts in the ground and causes erosion
Solution Approach 1:
The patent employs electric motors that provide precise torque control, allowing the system to apply only the necessary driving force without excessive weight pressing on the ground. The electric propulsion system can modulate force output to match terrain conditions, preventing the formation of deep ruts and reducing erosion compared to heavy mechanical systems.
Solution Approach 2:
The system uses dynamically adjustable electric motor torque to adapt to varying terrain conditions. Rather than relying on fixed heavy mechanical components, the electric drive system can real-time adjust the applied force to minimize ground impact while maintaining adequate propulsion, thereby reducing erosion and rut formation.
3Device complexity
If the irrigation towers use fixed height A-frames, then the structure is simple, but the system cannot operate effectively on non-flat terrain
Solution Approach 1:
The patent replaces fixed-height A-frames with electrically actuated height-adjustable support structures. These dynamic structures can independently adjust their height to compensate for terrain variations, allowing the irrigation system to maintain proper spray height and coverage on non-flat terrain while retaining relatively simple structural design.
Solution Approach 2:
The support structures are designed to perform multiple functions: providing structural support, adjusting height adaptively, and enabling operation across varying terrain conditions. This multi-functionality replaces the need for complex mechanical linkages while achieving terrain adaptability.
4Device complexity
If the irrigation system uses limit switches for guidance, then the control system is simple, but the spans must continually stop and start causing structural fatigue
Solution Approach 1:
The patent replaces mechanical limit switches with electronic control systems that use sensors and programmable logic to manage span movement. This electronic substitution eliminates the need for physical stop-start operations at limit points, allowing continuous or smoother motion that reduces structural fatigue and extends system durability while maintaining control functionality.
Solution Approach 2:
The electronic control system enables continuous operation of the irrigation spans by eliminating the stop-start cycles inherent in limit switch systems. The spans can maintain continuous motion or smoother transitions, preventing the repeated stress and fatigue that occurs with frequent starting and stopping, thereby improving structural reliability.
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A farming system includes a field engagement unit. The field engagement unit includes a support assembly. The support assembly includes one or more work tool rail assemblies. The field engagement unit additionally includes one or more propulsion units which provide omnidirectional control of the field engagement unit. The field engagement unit additionally includes one or more work tool assemblies. The one or more work tool assemblies are actuatable along the one or more work tool rail assemblies. The farming system additionally includes a local controller. The local controller includes one or more processors configured to execute a set of program instructions stored in memory. The program instructions are configured to cause the one or more processors to control one or more components of the field engagement unit.