WEED CONTROL AT HIGH SPEED

Abstract

An apparatus and a method for increasing the movement speed of the rail vehicle while carrying out measures for controlling weeds on track systems. A rail vehicle equipped with an apparatus for increasing the movement speed of the rail vehicle while carrying out measures for controlling weeds on track systems.

Claims

1: An apparatus for weed control for a rail vehicle, comprising: an identification system for identifying one or more locations along a stretch of track for weed control, and a weed control system for applying weed control at the identified one or more locations, wherein, at least one of the identification system and the weed control system is configured to move in a direction that is opposite to a movement direction of the rail vehicle.

2: The apparatus of claim 1, wherein the weed control system comprises nozzles.

3: The apparatus of claim 1, wherein the weed control system comprises spray nozzles for applying one or more herbicides.

4: The apparatus of claim 1, wherein the weed control system comprises electrodes for applying an electric current upon contact with a plant so that the electric current flows at least partially through the plant.

5: The apparatus of claim 1, wherein the weed control system comprises at least one emitter for emitting radiation in a direction of plants located on the track system.

6: The apparatus of claim 1, wherein the identification system comprises one or more cameras which are connected to a computer system for analysing images.

7: A method comprising: moving a rail vehicle along a stretch of track in a movement direction, identifying, via an identification system, at least one location for weed control, and applying, via a weed control system, the weed control at the at least one location, wherein, during the movement of the rail vehicle, at least one of the identification system and the weed control system moves in a direction that is opposite to the movement direction of the rail vehicle.

8: The method of claim 7, wherein the rail vehicle moves at a speed of at least 30 km/h, while the weed control system applies the weed control.

9: The method of claim 7, wherein at least a portion of at least one of the identification system and the weed control system is mounted on a rail and carries out a lateral movement opposite to the movement direction of the rail vehicle.

10: The method of claim 9, wherein the rail forms a closed loop.

11: The method of claim 7, wherein at least a portion of at least one of the identification system and the weed control system is fastened to a circumferential support and carries out a lateral movement opposite to the movement direction of the rail vehicle.

12: The method of claim 7, wherein at least a portion of at least one of the identification system and the weed control system is pivotably mounted and carries out a pivoting movement opposite to the movement direction of the rail vehicle.

13: The method of claim 7, wherein at least one of the identification system and the weed control system comprises a plurality of portions that carry out a rotation movement and a portion of the plurality of portions that is located closest to the track bed carries out a movement opposite to the movement direction of the rail vehicle.

14: The method of claim 7, wherein at least one of the identification system and the weed control system comprises a plurality of portions and a portion of the plurality of portions is configured to always move in a direction opposite to the movement direction of the rail vehicle.

15: A rail vehicle comprising one or more apparatuses of claim 1.

16: The method of claim 7, wherein the rail vehicle moves at a speed of at least 40 km/h while the weed control system applies the weed control.

17: The method of claim 7, wherein the rail vehicle moves at a speed of at least 50 km/h while the weed control system applies the weed control.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The invention will be explained in more detail below with reference to figures, without the invention intending to be restricted to the features and combinations of features shown in the figures, in which:

[0058] FIG. 1 schematically shows a rail vehicle equipped with an apparatus according to some embodiments of the invention.

[0059] FIG. 2 schematically shows a further rail vehicle equipped with an apparatus according to some embodiments of the invention.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

[0060] The rail vehicle (10) shown in FIG. 1 is illustrated from one side (a) and from below (b). The said rail vehicle moves in a direction (50) on rails (20) by means of wheels (30). A camera system (40) by way of which the track bed can be examined for the presence of weeds is provided. If weeds or a specific weed are/is identified by means of the camera system, a control means is activated. In this embodiment, weed control is performed by the application of a herbicide. The herbicide is applied to the track bed by means of spray nozzles (60, 60, 61, 61). FIG. 1 shows two spray nozzles (60, 60) which move on rails (70, 70) in a direction which is opposite to the movement direction (50) of the rail vehicle (10). These spray nozzles (60, 60) apply herbicide to the track bed as they move in the said direction. During this time, the spray nozzles (61, 61) move on the same rails (70, 70) but in the direction (50) of the rail vehicle and do not apply herbicide in the process. The said spray nozzles apply a herbicide only when they have reached the respectively outer straight section beyond the bends in the rails and execute a movement opposite to the direction (50) of the rail vehicle. The spray nozzles (60, 60) then move in the direction (50) of the rail vehicle to the inner straight section and do not perform application during this movement.

[0061] The rail vehicle (10) shown in FIG. 2 moves in a direction (50) on rails (20). The rail vehicle is equipped with identification means (40) in the form of a camera. In the upper illustration (a1), the camera is looking at a section of track in the travelling direction (50). In the lower illustration (a2), the rail vehicle is shown at a later moment; it has moved slightly to the right in relation to the position in the illustration (a1). During this movement, the camera (40) has completed a pivoting movement opposite to the movement of the rail vehicle (to the rear); in the illustration (a2), the camera is directed to the left. During the pivoting movement, the camera takes one or more image recordings of the track bed in order to identify weeds. If a weed is identified, a spray nozzle (60) is prompted to apply a herbicide when the weed is in the application range of the spray nozzle. After the pivoting movement to the rear, the camera will perform a pivoting movement forwards into its starting position in order to then once again pivot to the rear, and so on. While pivoting forwards, said camera does not take any image recordings. A plurality of cameras are preferably provided, which cameras alternately pivot from front to rear and back, wherein at least one camera always performs a pivoting movement against the movement direction of the rail vehicle and in doing so generates one or more image recordings of the track bed in order to identify weeds.