Sprayer Stop Reservation Control for Safe Field Access
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Solution Overview
Problem
In existing automatic traveling systems for work vehicles, issuing a travel stop instruction while the vehicle is performing spraying work can lead to inefficiencies as the operator must enter the sprayed area to reach the stopped vehicle, exposing themselves to the spray material and requiring countermeasures to avoid exposure.
Innovation Solution
Implementing an automatic traveling method that allows the work vehicle to temporarily stop and resume travel based on conditions, enabling the vehicle to stop in a safe location outside the sprayed area, thereby minimizing operator exposure and maintaining work efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the work vehicle stops immediately at the current position when a travel stop instruction is issued during spraying work, then the operator can quickly reach the vehicle, but the operator must enter the sprayed area which exposes them to spray material and requires countermeasures
Solution Approach 1:
The system performs preliminary action by continuing to travel to a predetermined stop position after receiving a stop instruction, rather than stopping immediately. This preliminary continuation of travel allows the vehicle to reach a safe location outside the sprayed area before stopping, eliminating operator exposure risk while maintaining relatively quick response time.
Solution Approach 2:
The predetermined stop position acts as an intermediary location between the current sprayed area and the operator's safe position. The vehicle travels to this intermediate position which serves as a transition point, allowing the operator to approach from a safe distance without entering the hazardous sprayed zone.
2Object-affected harmful factors
If the work vehicle continues traveling after a stop instruction to reach a safe position, then operator exposure is minimized, but work efficiency may be reduced due to extended stopping time
Solution Approach 1:
The system pre-determines stop positions along the target route before operation begins. When a stop instruction is received, the vehicle simply continues to the next predetermined position rather than making unplanned stops or deviations, which minimizes the additional time required while ensuring operator safety.
Solution Approach 2:
The system dynamically adjusts the stopping behavior based on the received instruction type. For normal stop instructions, the vehicle continues to a predetermined position; for emergency stops, the vehicle stops immediately. This dynamic response optimizes the balance between safety and efficiency based on operational conditions.
Data Source
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AI summary
An automatic traveling method includes: causing a sprayer to travel automatically along a target route in a field; executing temporary stop processing; and executing stop reservation processing. The temporary stop processing is processing to stop the sprayer at a current position in a mode in which travel of the sprayer can be resumed in the case where a temporary stop condition is satisfied during automatic travel of the sprayer. The stop reservation processing is processing to cause the sprayer to travel and thereafter stop the sprayer in a state where the travel of the sprayer can be resumed in the case where a stop reservation condition is satisfied during the automatic travel of the sprayer.