Railway Spray Device With Vegetation Detector

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Solution Overview

Problem

Current methods for removing unwanted plants from railway lines are inefficient, damaging to infrastructure, energy-intensive, or unsuitable for industrial and dead-end railways, lacking a device that can quickly and effectively weed all types of railway lines.

Innovation Solution

A railway spray device equipped with a vegetation detector connected to a control unit and spray nozzles on a small, versatile motor vehicle, allowing selective spraying forward and backward, enabling efficient weeding without requiring line booking or cancellation, suitable for industrial and dead-end lines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If mechanical weed removal devices are used, then weed removal capability is improved, but the device may damage railway infrastructure and has poor work quality

Engineering Contradiction:
Improveweed removal capabilityVSAvoidrisk of damaging railway infrastructure
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent replaces mechanical weed removal systems with a thermal weed killing system. The device uses a burner that generates a flame to kill weeds through thermal energy rather than mechanical contact. This substitution eliminates the risk of mechanical damage to railway infrastructure while maintaining effective weed removal capability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If steam-generating devices are used to kill unwanted plants, then weed killing effectiveness is improved, but the device is energy intensive and moves very slowly

Engineering Contradiction:
Improveweed killing effectivenessVSAvoidenergy intensity
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent changes the thermal parameters by using a burner system that generates high-temperature flame directly, rather than using steam generation which requires heating water to boiling point. This parameter change reduces energy consumption while maintaining effective weed killing, and allows the device to move faster since it doesn't require slow movement for proper steam application.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If hot water devices are used to remove unwanted plants, then selective weed killing is improved, but the device is little productive and moves very slowly

Engineering Contradiction:
Improveselective weed detection and targetingVSAvoidweed removal speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent replaces the hot water application system with a flame-based thermal system. The burner generates a concentrated flame that can quickly kill detected weeds without requiring slow movement for precise hot water application. This substitution maintains selective weed killing capability through the detection system while dramatically improving productivity and movement speed.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Reliability

If chemical substances are used to kill unwanted plants, then weed killing effectiveness is improved, but the device cannot be used for industrial railways and dead-end railway lines

Engineering Contradiction:
Improveweed killing effectivenessVSAvoidsuitability for industrial and dead-end railways
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent creates a universal weed killing device that can operate on all types of railway lines including industrial railways and dead-end lines. The thermal burning system eliminates the limitation of chemical spray devices that require train formation for operation. The device can be towed by any rail vehicle and operates independently of train scheduling, providing universal applicability across all railway configurations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

5Reliability

If hand plucking methods are used to remove unwanted plants, then no infrastructure damage occurs, but the method is rather unproductive and work quality is not satisfactory

Engineering Contradiction:
Improveno infrastructure damageVSAvoidweed removal efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent replaces manual hand plucking with an automated thermal burning system. The detector-actuator system automatically identifies and burns weeds as the device moves along the railway line, eliminating the need for manual labor. This substitution dramatically improves productivity and work quality while maintaining the advantage of no mechanical infrastructure damage since the flame only contacts detected weeds.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP2728068B1Railway spray device
Publication Date: 2017.10.04 JARO CESKA SKALICE
  • EP2728068B1 patent drawingFigure 1
  • EP2728068B1 patent drawingFigure 2

AI summary

The spray device, especially the railway spray device consisting of the motor vehicle (1), at least one spray tank (2) and at least one spray nozzle (3), which comprises of at least one vegetation detector (4) connected to at least one control unit (7), which is connected to at least two spray nozzles (3) installed on the end parts (5,6) of the motor vehicle (1).