Autonomous Field Vehicle Turning Near Edge Rows
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Solution Overview
Problem
Existing autonomous travel systems for working vehicles in farm fields restrict the work region due to predefined turning positions, narrowing the area where the vehicle can conduct work along linear routes.
Innovation Solution
An autonomous travel system with a route creation unit, forward movement control, backward movement control, and turning control units that allow the vehicle to autonomously navigate closer to the field edge, enabling enlarged work regions by optimizing turning and backward movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the working vehicle is made to autonomously stop at a predetermined position for turning, then the turning can be executed reliably, but the work region is narrowed because the vehicle cannot work closer to the field edge
Solution Approach 1:
Instead of having the vehicle autonomously stop and turn at predetermined positions, the invention inverts the control approach: the operator directly controls the vehicle to move backward and turn at the field edge, eliminating the need for predetermined turning positions and maximizing the work region while maintaining reliable turning execution through manual oversight
Solution Approach 2:
The operator serves as the decision-making center, directly controlling the vehicle's backward movement and turning actions based on real-time field conditions, eliminating the need for complex autonomous stopping and turning systems while maximizing work area coverage
2Manufacturing precision
If the working vehicle conducts work along linear routes only, then the work quality is maintained, but the region where work can be conducted is reduced due to required turning spaces
Solution Approach 1:
The invention transitions from static predetermined turning positions to dynamic operator-controlled turning at the field edge, allowing the vehicle to adapt to actual field conditions and maximize the workable region while maintaining work quality through direct operator supervision
Solution Approach 2:
The invention adds the dimension of operator control to the automated linear working process, allowing turning operations to occur at the field edge rather than being constrained to predetermined positions, effectively expanding the two-dimensional work region
Data Source
AI summary
This autonomous traveling system is provided with a path preparation unit, a forward movement control unit, a backward movement control unit, and a turn control unit. The path preparation unit prepares a plurality of straight line paths. The forward movement control unit causes a machine to execute work and simultaneously causes the machine to travel along a straight line path by at least autonomous steering. After an operator has stopped the machine traveling toward an edge of a field, the backward movement control unit causes the machine to travel backward autonomously or operationally by the operator, without executing any work. After the machine moving backward has stopped, and an instruction for forward movement has been provided by the operator, the turn control unit causes the machine to turn toward a predetermined straight line path by performing at least autonomous steering without executing any work.