Self-Propelled Crop Phenotype Platform with Independent Wheel Motors
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Solution Overview
Problem
Existing self-propelled platforms for monitoring field crop phenotypes face challenges in automatically adjusting wheel track and ground clearance, leading to vehicle body deformation due to excessive resistance between wheels and the pavement during adjustments.
Innovation Solution
A self-propelled platform equipped with a traveling and steering mechanism, including wheel-side motors, torque motors, and double-rocker arm structured wheel track and ground clearance adjustment devices, which allow for automatic adjustment of wheel track and ground clearance, enabling smooth navigation and minimizing vehicle deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wheel track and ground clearance are adjusted manually in existing platforms, then adjustment capability is achieved, but vehicle body deformation occurs due to excessive resistance between wheels and pavement
Solution Approach 1:
The patent replaces the traditional mechanical linkage system for wheel track and ground clearance adjustment with an independent wheel-side motor system. Each wheel is equipped with its own motor that can independently control wheel position and orientation, eliminating the need for mechanical linkages that cause body deformation. The motor-driven system adjusts wheel parameters electronically without transmitting excessive mechanical forces to the vehicle body.
Solution Approach 2:
The patent divides the adjustment system into independent modular units, with each wheel having its own motor and control system. This segmentation allows each wheel to be adjusted independently without affecting the overall vehicle body structure, preventing deformation while maintaining adjustment capability.
2Stability of the object's composition
If wheel track and ground clearance are adjusted with rigid connections, then structural stability is maintained, but excessive resistance between wheels and pavement causes vehicle body deformation
Solution Approach 1:
The patent introduces damping devices connected between the upright posts and the vehicle body that can dynamically adjust their damping characteristics. These damping devices absorb and dissipate the excessive resistance forces generated during wheel adjustment, preventing force transmission to the vehicle body that would cause deformation, while maintaining structural stability through controlled energy dissipation.
3Productivity
If automatic adjustment system is implemented, then adjustment efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements a self-service automatic adjustment system where each wheel-side motor is equipped with sensors and control systems that enable autonomous wheel track and ground clearance adjustment. The system can automatically detect required adjustments and execute them without external intervention, improving efficiency while the modular design keeps complexity manageable through standardization of the wheel-side units.
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 platform achieves adaptive wheel track and ground clearance adjustments, ensuring field trafficability, preventing crop damage, and accommodating various monitoring heights, thereby enhancing its operational efficiency and versatility.
Implementation Method 1
the upper sleeve may be connected to the lower sleeve through a spring damping device for reducing an impact of pavement vibration on the self-propelled platform
Implementation Method 2
the wheels are driven to travel through respective wheel-side motors
Implementation Method 3
the wheels are driven to steer through respective torque motors
Implementation Method 4
excessive resistance between wheels and a pavement during adjustment
Data Source
AI summary
A self-propelled platform for monitoring field crop phenotype is provided. The monitoring platform includes a traveling and steering mechanism, wheel track and ground clearance adjustment devices, damping devices, and a case. The traveling and steering mechanism includes wheel side motors, wheels, and torque motors. The wheels are connected to respective upright posts of the platform through respective rigid independent suspensions. Each upright post is of sleeve structure and includes an upper sleeve and a lower sleeve. A corresponding damping device is connected between the upper sleeve and the lower sleeve. The wheel track and ground clearance adjustment devices are configured for adjusting the height of the case and the tracks between the wheels. The lower ends of the wheel track and ground clearance adjustment devices are rotatably connected to respective upright posts, and the upper ends are rotatably connected to the case.