Machine Vision Rail Maintenance for Selective Weed Spraying
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Solution Overview
Problem
Current maintenance of way systems for routes, such as roads and railways, often lack precision and efficiency, leading to unnecessary resource expenditure and environmental impact, as they blindly spray herbicides and perform maintenance without distinguishing between obstructive and non-obstructive vegetation or considering environmental parameters like weather and terrain.
Innovation Solution
A vehicle system equipped with a control circuit and emitter that uses machine vision to selectively focus on targeted features, adjusting the emission to spare non-targeted elements within its vicinity, allowing for precise application of herbicides and maintenance based on real-time environmental data and sensor information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spray systems blindly spray herbicide along a route, then harmful weeds that obstruct the route are eliminated, but beneficial plants are also eliminated and resources are wasted
Solution Approach 1:
The patent replaces the mechanical spray system with an optical detection system (machine vision) that uses cameras and image processing to identify and distinguish between obstructive weeds and beneficial plants. This substitution enables selective treatment by converting visual information into actionable data for the spray system, allowing herbicide application only where needed rather than blanket spraying along the entire route.
Solution Approach 2:
The patent implements local quality by enabling the spray system to apply herbicide selectively to specific locations where obstructive vegetation is detected, rather than uniformly across the entire route. The machine vision system identifies the precise location and type of vegetation, and the spray system responds by applying treatment only to those specific areas, thereby preserving beneficial plants while eliminating weeds.
2Productivity
If maintenance systems operate without considering environmental parameters, then maintenance operations can be performed continuously, but environmental damage increases and resource efficiency decreases
Solution Approach 1:
The patent incorporates feedback mechanisms where the machine vision system continuously monitors environmental conditions and vegetation status, and this information feeds back to control the spray system's operation. The system adjusts its behavior based on real-time data about weather conditions, terrain features, and plant identification, enabling continuous operations while preventing environmental damage by pausing or modifying treatment when conditions are unfavorable.
Solution Approach 2:
The patent utilizes parameter changes by detecting and responding to variations in environmental parameters such as weather conditions, terrain characteristics, and vegetation properties. The machine vision system measures these parameters and the control system adjusts maintenance operations accordingly, changing spray rates, timing, and target selection based on the detected parameters to minimize environmental impact while maintaining productivity.
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
This approach enables targeted and efficient maintenance, reducing resource waste and environmental impact by ensuring that only obstructive vegetation is addressed, while sparing beneficial plants and avoiding unnecessary treatment of sensitive areas.
Implementation Method 1
The control circuit can be configured to determine a parameter associated with the operating vicinity of the vehicle, detect the targeted feature based, at least in part, on the parameter
Data Source
AI summary
A maintenance of way system having a vehicle is described herein. The vehicle may include an emitter adjustable to selectively focus on a targeted feature within an operating vicinity of the vehicle a control circuit communicatively coupled to the emitter. The control circuit may determine a parameter associated with the operating vicinity of the vehicle, detect the targeted feature based, at least in part, on the parameter, adjust the emitter to selectively focus the emitter with respect to the targeted feature, and cause the emitter to direct an emission toward the targeted feature while sparing non-targeted features within the operating vicinity.