Remote operation terminal and work vehicle comprising remote operation terminal

Patent metadata

Field	Value
Publication number	US-11377328-B2
Application number	US-201916977721-A
Country	US
Kind code	B2
Filing date	Mar 8, 2019
Priority date	Mar 9, 2018
Publication date	Jul 5, 2022
Grant date	Jul 5, 2022

Abstract

A problem to be addressed by the present invention is to provide a remote operation terminal and work vehicle comprising said remote operation terminal for enabling easy and straightforward carrying out of a remote operation of a work device. Provided is a remote operation terminal (32) of a crane device (6), said terminal comprising: a terminal-side control device (42) being a control part for controlling an operation of the remote operation terminal (32) and configured to enable communication with a control device (31) of the crane device (6); a load movement operation instrument (35) being a first operation part for remotely operating the crane device (6); and a reference change operation instrument (34) being a second operation part for setting a reference of an operation direction of the crane device (6) operated by the load movement operation instrument (35). The terminal-side control device (42): computes the operation direction of the crane device (6) with regard to the operation of the load movement operation instrument (35) on the basis of the setting value of the reference change operation instrument (34), and transmits said direction to the control device (31); and prevents a change of the setting value while the load movement operation instrument (35) is being operated.

First claim

The invention claimed is:

1. A remote operation terminal for a work apparatus provided in a work vehicle, the remote operation terminal comprising:
a control section that is configured to be capable of obtaining a signal from a control apparatus of the work apparatus and that controls operation of the remote operation terminal;
a first manipulation section used to remotely operate the work apparatus; and
a second manipulation section used to set a reference of a direction in which the work apparatus moves as a result of manipulation of the first manipulation section, wherein
the control section calculates a direction in which the work apparatus moves for manipulation of the first manipulation section, based on a set value of the second manipulation section and transmits the direction to the control apparatus, and disables a change of the set value while the first manipulation section is being manipulated.

2. The remote operation terminal according to claim 1 , wherein, when the control section obtains a manipulation signal from the first manipulation section, the control section transmits, to the control apparatus, a control signal converted from the manipulation signal of the first manipulation section based on the set value of the second manipulation section, and while obtaining the manipulation signal, the control section invalidates a manipulation signal of the second manipulation section.

3. The remote operation terminal according to claim 1 , further comprising:
a third manipulation section that enables transmission of a control signal converted from a manipulation signal of the first manipulation section based on the set value of the second manipulation section, wherein
while the control section is obtaining a manipulation signal from the third manipulation section, the control section enables transmission of the control signal to the control apparatus and invalidates a manipulation signal of the second manipulation section.

4. The remote operation terminal according to claim 1 , wherein
the set value of the second manipulation section is a set value that corrects a reference direction on an operating face of the remote operation terminal, and
the direction in which the work apparatus moves is calculated so as to correspond to an angle difference between the reference direction on the operating face and a manipulation direction of manipulation made for the first manipulation section.

5. The remote operation terminal according to claim 1 , further comprising a fourth manipulation section that locks a control signal related to a tilting direction within a control signal of the first manipulation section and enables a change of the manipulation direction reference with the first manipulation section.

6. The remote operation terminal according to claim 1 , further comprising a reference setting section that automatically sets the manipulation direction reference.

7. A remote operation terminal for a work apparatus provided in a work vehicle, the remote operation terminal comprising:
a control section that is configured to be capable of communicating with a control apparatus of the work apparatus and that controls operation of the remote operation terminal;
a first manipulation section used to remotely operate the work apparatus; and
a reference setting section that automatically sets a reference of a direction in which the work apparatus moves as a result of manipulation of the first manipulation section, wherein
the control section calculates a direction in which the work apparatus moves for manipulation of the first manipulation section based on a set value of the reference setting section and transmits the direction to the control apparatus, and disables a change of the set value while the first manipulation section is being manipulated.

8. A remote operation terminal for a work apparatus provided in a work vehicle, the remote operation terminal comprising:
a control section that is configured to be capable of obtaining a signal from a control apparatus of the work apparatus and that controls operation of the remote operation terminal;
a first manipulation section used to remotely operate the work apparatus based on a manipulation direction reference of the remote operation terminal; and
a second manipulation section used to lock a control signal related to a tilting direction within a control signal of the first manipulation section and to enable a change of the manipulation direction reference with the first manipulation section.

9. The remote operation terminal according to claim 8 , wherein, when the control section obtains a manipulation signal to change a tilting direction of the first manipulation section in a state where a manipulation signal from the second manipulation section is obtained, the control section locks the control signal related to the tilting direction to a control signal related to the tilting direction of the first manipulation section before the tilting direction is changed, and transmits the control signal to the control apparatus, and changes the manipulation direction reference such that the tilting direction of the first manipulation section of which the tilting direction is changed becomes the tilting direction of the first manipulation section before the tilting direction is changed.

10. The remote operation terminal according to claim 8 , wherein, when the control section determines that a manipulation signal from the second manipulation section is stopped or when the control section obtains a manipulation signal to disable a change of the manipulation direction reference from the second manipulation section, the control section locks the changed manipulation direction reference and releases locking of the control signal related to the tilting direction of the first manipulation section.

11. The remote operation terminal according to claim 8 , wherein
the control signal related to the tilting direction of the first manipulation section is a signal that defines the direction in which the work apparatus moves, in accordance with an angle difference between the manipulation direction reference and the tilting direction, and
in a case where the change of the manipulation direction reference is enabled by manipulation of the second manipulation section, the control section changes a direction of the manipulation direction reference to a direction in accordance with the tilting direction of the first manipulation section, and locks the control signal related to the tilting direction of the first manipulation section, thereby locking the direction in which the work apparatus moves to the direction before the direction of the manipulation direction reference is changed.

Assignees

• Tadano Ltd

Inventors

• Hayashi Hiroyuki
• Kanda Shinsuke

Classifications

• B66C23/48

  Manually-movable jib cranes for use in workshops · CPC title

• B66C23/88

  Safety gear (for cranes in general B66C15/00; for rope, cable, or chain winding mechanisms B66D1/54) · CPC title

• B66C23/44

  Jib-cranes adapted for attachment to standard vehicles, e.g. agricultural tractors · CPC title

• B66C23/905 Primary

  electrical · CPC title

• B66C13/40 Primary

  Applications of devices for transmitting control pulses; Applications of remote control devices (control in general G05) · CPC title