Crane Remote Operation Terminal for Stable Direction Reference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing remote operation terminals for work vehicles, such as cranes, require operators to constantly manage the relative positional relationship between the terminal and the work apparatus, leading to complex and error-prone operations due to the need to lock and unlock movement directions, which can result in incorrect movements of the work machine even when the operator maintains the same manipulation direction.
Innovation Solution
A remote operation terminal with a control section that calculates and transmits the movement direction of the work apparatus based on a set value from a reference setting section, disabling changes during manipulation, and includes a deadman switch to prevent unintended movements, ensuring the operator maintains the correct direction without losing the identified movement direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a movement direction lock switch is used to lock the deviation angle with respect to the terminal reference absolute azimuth, then the movement direction of the work machine can be held stable, but the operator cannot change the movement direction during manipulation and must constantly grasp the reference absolute azimuth, complicating the operation
Solution Approach 1:
The patent introduces a reference azimuth correction function that acts as an intermediary between the terminal reference absolute azimuth and the work machine reference absolute azimuth. This correction mechanism allows the system to automatically adjust for relative positional changes without requiring the operator to manually manage the reference frame, thus maintaining stability while simplifying operation.
Solution Approach 2:
The system automatically tracks and compensates for changes in the relative positional relationship between the work apparatus and the remote operation terminal. The control apparatus self-adjusts the reference azimuth based on detected positional changes, eliminating the need for the operator to constantly monitor and manually correct the reference frame.
2Reliability
If the remote operation terminal calculates movement direction based on a fixed set value during manipulation, then erroneous manipulation is prevented, but the operator loses flexibility to change direction during operation
Solution Approach 1:
The patent implements a dynamic reference azimuth correction mechanism that automatically adapts to changing operational conditions. The system continuously detects the relative positional relationship between the terminal and work apparatus, and dynamically adjusts the reference azimuth accordingly, allowing flexible direction changes while maintaining calculation accuracy through real-time updates rather than fixed values.
Data Source
AI summary
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.