Autonomous Work Vehicle Control System Field Edge Warning
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Solution Overview
Problem
Existing autonomous traveling work vehicle systems do not adequately check for sensor and actuator abnormalities before starting automatic travel, leading to potential accidents and collisions, especially when an accompanying traveling work vehicle approaches the field end.
Innovation Solution
Implementing a system with a control device connected to a communication device and speed change means that checks sensors and actuators before automatic travel, issues warnings for abnormalities, and displays notifications on a display and via voice, ensuring safe operation by preventing automatic travel if issues are detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automatic traveling is implemented without pre-travel checks of sensors and actuators, then work efficiency is improved, but safety deteriorates due to potential accidents from abnormal actuator operation
Solution Approach 1:
The system performs preliminary checks of sensors and actuators before automatic traveling begins. The control device activates each actuator in sequence during a check period to verify normal operation, and only permits automatic traveling to start after all components are confirmed functional. This preliminary verification eliminates safety risks while maintaining work efficiency.
Solution Approach 2:
The system incorporates feedback mechanisms where the control device receives status information from sensors and actuators during the check period. Based on this feedback, the control device determines whether each component is operating normally and makes the decision to either permit or prohibit automatic traveling. This feedback loop ensures safety verification before operation.
2Device complexity
If voice notification is provided only for automatic operation status, then device complexity is reduced, but information completeness deteriorates causing operator bewilderment during field end approaches
Solution Approach 1:
The notification means is designed to perform multiple functions: it notifies the operator not only when automatic operation is active but also when the autonomous vehicle approaches the field end. By making the notification system multi-functional, the patent provides comprehensive information to the operator without adding separate notification devices, thus maintaining simplicity while improving information completeness.
Solution Approach 2:
The notification means acts as an intermediary between the autonomous vehicle's status and the operator's awareness. It translates vehicle status information (automatic operation mode, field end approach) into human-perceptible signals (voice notifications), ensuring the operator receives timely and complete information about system state and upcoming events.
Data Source
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AI summary
A parallel operation work vehicle for enabling operation of an autonomous work vehicle (1) by a long distance operating device (112) installed in an accompanying work vehicle (100) for performing work while accompanying the autonomous work vehicle (1) in order to provide advance notice to an operator on board the accompanying work vehicle once the autonomous work vehicle running along a running path preset using a satellite positioning system has reached the edge of a cultivated field or just before a set distance position of a rotational position, or before a set time, wherein the accompanying work vehicle (100) is provided with a display (113) and a speaker (151) as notification means, the notification means is capable of communicating with the autonomous work vehicle (1) through a communication device (133), and, when a distance (L1) to the edge of the cultivated field from the autonomous work vehicle (1) approaches a set distance (L), a control device (30) transmits a signal to a control device (130) of the accompanying work vehicle (100) through the communication device and issues a warning through the notification means, and if there is an abnormality prior to the autonomous operation, the abnormal portion is displayed and autonomous operation is disallowed.