High-speed system for weed control

Patent metadata

Field	Value
Publication number	US-11473256-B2
Application number	US-201816607620-A
Country	US
Kind code	B2
Filing date	Apr 24, 2018
Priority date	Apr 28, 2017
Publication date	Oct 18, 2022
Grant date	Oct 18, 2022

Abstract

The invention relates to a modular system for weed control for a rail vehicle. The modular system has a control unit for producing control signals for controlling valves and mixers in a separate herbicide and mixing module and for producing a second set of control signals for controlling valves of a nozzle rod. The herbicide and mixing module has a container for holding different herbicides and electrical connection elements for connections to the control unit. Furthermore, a nozzle rod is present, which is fitted with a nozzle set, in order to spray herbicides of the herbicide and mixing module. In addition, a camera module is present, which produces a weed signal in response to the detection of a weed, in order to control the spraying of the herbicides. The camera module is at such a distance from the nozzle rod that, despite high speed, there is sufficient time to provide the herbicide at the nozzles.

First claim

The invention claimed is:

1. A modular system for weed control for a rail vehicle, comprising:
a control and monitoring module;
an herbicide and mixing module;
a nozzle rod; and
a camera module, wherein the control and monitoring module, the herbicide and mixing module, and the nozzle rod are each configured to be individually and independently attached to and detached from a support element;
wherein the control and monitoring module comprises a control unit configured to:
generate a first set of control signals for controlling valves and mixers in the herbicide and mixing module for mixing an herbicide mixture, and
generate a second set of control signals for controlling valves of the nozzle rod;

wherein the herbicide and mixing module comprises:
valves and mixers,
containers for holding different herbicides, which are selectively fluidically connected to the valves and mixers in a selective fluidic connection,
connection elements, via which electrical signal connections are made to connection elements of the control unit, so that the first control signals generated in the control unit can be directed to the valves and mixers of the herbicide and mixing module;

wherein the camera module is configured to:
have a predefined distance to the nozzle rod,
have a predefined distance to the control unit,
be spatially separated from each of the control unit, the herbicide and mixing module, and the nozzle rod,
be positioned in front of the control unit, the herbicide and mixing module and the nozzle rod in a common direction of motion thereof, and
generate a weed signal in response to detection of a weed; and

wherein the control unit is configured to control the generation of the first set of control signals and the generation of the second set of control signals based on the weed signal generated by the camera module.

2. The modular system of claim 1 , wherein the support element is a carrying wagon for rail deployment.

3. The modular system of claim 1 , wherein the camera module is attached to a vehicle traveling ahead of the control unit, the camera module configured to be detached from the vehicle.

4. The modular system of claim 1 , wherein the camera module is attached to an unmanned flying object.

5. The modular system of claim 1 , wherein the camera module is configured to generate a weed-specific signal, and wherein the control unit is configured to receive the weed-specific weed signal from the camera module and to generate weed-specific weed signals during the generation of the first set of control signals to control the valves and mixers in the herbicide and mixing module for mixing a weed-specific herbicide mixture.

6. The modular system of claim 1 , wherein the nozzle rod comprises a group of closure rail nozzles and two groups of embankment nozzles.

7. The modular system of claim 6 , wherein the group of closure rail nozzles comprises first and second subgroups of closure rail nozzles, the first subgroup comprises closure rail nozzles that are closest to railway tracks located diagonally underneath them, the closure rail nozzles of the first subgroup of closure rail nozzles are half-jet nozzles, and the closure rail nozzles of the second subgroup are full-jet nozzles.

8. The modular system of claim 6 , wherein the two groups of embankment nozzles each comprise first and second subgroups of embankment nozzles, the first subgroups comprise embankment nozzles that are closest to the railway tracks located diagonally underneath them, the embankment nozzles of the first subgroups of embankment nozzles are half-jet nozzles, and the embankment nozzles of the second subgroups are full-jet nozzles.

9. The modular system of claim 1 , wherein nozzles of the nozzle rod are spoon nozzles, and wherein a spray jet is formed by a compressed air outlet positioned circularly around an outlet opening in a spoon nozzle of the spoon nozzles for the herbicide mixture.

10. The modular system of claim 1 , wherein the nozzle rod is attached to the support element below the control and mixing module.

11. A spraying train for weed control on railway tracks, comprising:
one or more carrying wagons, comprising:
a nozzle rod;
a control and monitoring module comprising a control unit configured to:
generate a first set of control signals for controlling valves and mixers in an herbicide and mixing module for mixing a herbicide mixture, and
generate a second set of control signals for controlling valves of the nozzle rod,

the herbicide and mixing module comprising:
the valves and mixers,
containers for holding different herbicides, which are selectively fluidically connected to the valves and mixers in a selective fluidic connection,
connection elements, via which electrical signal connections are made to connection elements of the control unit, so that the first control signals generated in the control unit can be directed to the valves and mixers of the herbicide and mixing module;

a camera module configured to:
have a predefined distance to the nozzle rod,
have a predefined distance to the control unit,
be spatially separated from each of the control unit, the herbicide and mixing module and the nozzle rod,
be positioned in front of the control unit, the herbicide and mixing module and the nozzle rod in a common direction of motion thereof, and
generate a weed signal in response to detection of a weed, wherein the control unit is configured to control the generation of the first set of control signals and the generation of the second set of control signals based on the weed signal generated by the camera module;

wherein the control and monitoring module, the herbicide and mixing module, and the nozzle rod are each configured to be individually and independently attached to and detached from a support element; and
a second wagon configured to attach and detach the camera module, wherein the second wagon is further configured to be in front of the one or more wagons in a direction of travel.

12. The spraying train of claim 11 , further comprising:
a power module configured to be electrically connectable to the control and monitoring module and the herbicide and mixing module, and configured to be attached to and detached from the support element; and
a lounge module in a container design having a through passage to the control and monitoring module, wherein the lounge module is configured to be attached to and detached from the support element.

13. The spraying train of claim 12 , wherein the modules of the spraying train are arranged in the following order in one of the two possible directions of movement: the herbicide and mixing module, the power module, the control and monitoring module, and the lounge module.

14. A method for controlling weeds in a trackbed, comprising:
attaching a control and monitoring module comprising a control unit to a carrying wagon, the control and monitoring module configured to be detached from the carrying wagon;
attaching a herbicide and mixing module to the carrying wagon, the herbicide and mixing module configured to be detached from the carrying wagon;
attaching a nozzle rod to the carrying wagon, the nozzle rod configured to be detached from the carrying wagon and being spatially independent of both the control and monitoring module and the herbicide and mixing module;
producing a fluidic connection between the herbicide and mixing module and the nozzle rod;
generating a weed signal using a camera module that is spaced in front of the carrying wagon in a travel direction of the carrying wagon;
manipulating, by the control unit, a first set of control signals base

Assignees

• Bayer Ag

Inventors

• Bassfeld Hinnerk
• Arians Thomas
• Keilholz Nils

Classifications

• B05B12/16

  for controlling the spray area (B05B3/00 takes precedence) · CPC title

• B05B12/08

  responsive to condition of liquid or other fluent material {to be} discharged, of ambient medium or of target {; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means} · CPC title

• B05B7/0408 Primary

  with arrangements for mixing two or more liquids · CPC title

• E01H11/00 Primary

  Control of undesirable vegetation on roads {or similar surfaces} or permanent ways of railways, {e.g. devices for scorching weeds or for applying herbicides}(destruction of undesirable vegetation in general A01M7/00 - A01M15/00, A01M21/00; weeding involving working the ballast E01B27/00; mowers for embankments A01D34/86; hedge shearing machines A01G3/04); Applying liquids, e.g. water, weed-killer bitumen, to permanent ways (specially to rails E01H8/10 {E01H8/105, E01H8/125}; for preserving sleepers E01B31/20) · CPC title

• B61D15/00

  Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways (conveyor frames mounted for movement on rail tracks B65G41/02; wheeled machines used in permanent way construction or maintenance E01B) · CPC title