Agricultural Vehicle Alert Zones for Towed Implement Collision Risk
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Solution Overview
Problem
Existing agricultural vehicle alert systems fail to adequately account for the impact of towed implements on the collision risk with nearby objects, leading to inefficient alert zone definitions that may generate false alarms or miss potential hazards.
Innovation Solution
A computer-implemented method for defining alert zones around agricultural vehicles that adjusts the size and shape of side zones based on characteristics of the towed implement, such as type, angle, and operational state, using implement sensors and vehicle indicators to predict future locations and modify the alert zone boundaries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed alert zone is defined around the agricultural vehicle without considering implement characteristics, then the system is simple to operate, but the collision risk assessment accuracy deteriorates
Solution Approach 1:
The alert zone boundaries are made dynamic by continuously adjusting them based on real-time implement characteristics such as type, angle, and operational state. The system transitions from a static fixed zone to a dynamic adaptive zone that automatically recalculates boundaries as implement parameters change, resolving the contradiction between operational simplicity and assessment accuracy.
Solution Approach 2:
The system changes the parameters defining the alert zone (size, shape, position) in response to changes in implement parameters. By linking zone parameters to implement characteristics, the system automatically adapts the alert boundaries without requiring manual intervention, thereby maintaining ease of operation while improving collision risk assessment accuracy.
2Reliability
If the alert zone size is increased to cover all possible implement positions, then the safety coverage is improved, but the false alarm rate increases
Solution Approach 1:
The alert zone is divided into different regions with different boundary definitions based on local implement characteristics. Instead of using a uniform large zone, the system creates localized alert boundaries that specifically cover the areas where the implement actually operates, thereby maintaining comprehensive safety coverage while eliminating unnecessary zones that would generate false alarms.
Solution Approach 2:
The system preliminarily determines the implement characteristics and predicts the implement's future position before defining the alert zone boundaries. By pre-calculating the appropriate zone size and shape based on current implement parameters and predicted motion, the system establishes accurate boundaries in advance, preventing both safety gaps and false alarm zones from forming.
3Measurement precision
If the alert zone is dynamically adjusted based on implement characteristics, then the collision risk assessment accuracy is improved, but the system complexity increases
Solution Approach 1:
The complex task of dynamic alert zone adjustment is segmented into distinct functional modules: implement characteristic detection, parameter processing, zone boundary calculation, and boundary application. Each module handles a specific aspect of the problem, making the overall complex system manageable through functional decomposition and reducing the cognitive load on the operator.
Solution Approach 2:
The system performs self-service by automatically detecting implement characteristics, calculating appropriate alert zone boundaries, and applying the adjustments without requiring manual intervention. The electronic control unit autonomously processes implement parameters and updates the alert zone definitions, thereby improving collision risk assessment accuracy while masking the underlying system complexity from the user.
4Reliability
If implement sensors are positioned on the agricultural vehicle to obtain implement indicators, then the measurement reliability is improved, but the device complexity increases
Solution Approach 1:
The sensor system is designed with multi-functionality, where a single sensor unit on the vehicle performs multiple measurement tasks: detecting implement position, angle, and operational state simultaneously. This universal sensor approach improves measurement reliability by centralizing data collection while avoiding the complexity of multiple separate sensor systems.
Data Source
AI summary
A mechanism for defining an alert zone surrounding an agricultural vehicle. The size and/or shape of side zones, that span alongside the agricultural vehicle, of the alert zone are defined or modified responsive to one or more characteristics of an implement that is being towed by the agricultural vehicle.