Remote Operation Terminal Reference Alignment for Work Vehicles
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Solution Overview
Problem
Existing remote operation terminals for work vehicles, such as cranes and aerial platforms, face challenges in aligning the operation direction of the remote operation tool with the work apparatus due to varying relative positional relationships, leading to inefficient operations, especially when the reception state of reference signals is poor or when the operator needs to consider complex work site conditions.
Innovation Solution
A remote operation terminal with a control section that communicates with a control apparatus on the work vehicle, featuring a first operation section for remotely operating the work apparatus and a second operation section that sets a reference for the first operation section, allowing the control section to calculate and transmit the operation direction based on set values, and a display section to show the reference, enabling the operator to easily align the operation direction with the work vehicle's reference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the operation direction of the remote operation terminal is fixed relative to the work vehicle, then the coordinate system alignment is simplified, but the operation direction does not coincide with the work apparatus direction in some cases
Solution Approach 1:
The patent makes the reference direction dynamic by allowing the operator to freely set the reference direction of the remote operation terminal using a rotation operation tool. This dynamically adjusts the coordinate system orientation to match the actual work requirements, resolving the contradiction between fixed coordinate simplicity and operational direction coincidence.
2Extent of automation
If the reference signal reception is used to identify relative direction, then the coordinate systems can be aligned automatically, but the alignment fails when reception state is poor
Solution Approach 1:
The patent introduces a manual reference setting function as an intermediary method. When automatic alignment via reference signal reception fails or is unreliable, the operator can manually set the reference direction using the rotation operation tool, ensuring reliable coordinate system alignment under all conditions.
Solution Approach 2:
The system provides feedback to the operator about the reception state of the reference signal. When reception is poor, the system enables or prompts the operator to use the manual reference setting function, creating a feedback loop that ensures reliable alignment regardless of signal conditions.
3Measurement precision
If the operator must consider relative positional relationship, then the operation precision can be maintained, but the operation becomes complex and time-consuming
Solution Approach 1:
The system performs automatic coordinate transformation and direction calculation based on the set reference direction. The control section automatically calculates the operation direction of the work apparatus based on the freely set reference direction, eliminating the need for the operator to manually consider relative positional relationships while maintaining operation precision.
4Device complexity
If the reference coordinate system is fixed to the remote operation terminal, then the terminal structure is simple, but the operation direction does not match the work site conditions
Solution Approach 1:
The patent makes the reference coordinate system dynamic by allowing free rotation and reorientation through the rotation operation tool. This enables the coordinate system to adapt to various work site conditions and operator preferences while maintaining a relatively simple terminal structure, as the changes are achieved through software control rather than physical reconfiguration.
Data Source
AI summary
A remote operation terminal is provided with: a terminal-side control device configured so as to be capable of communicating with a control device, the terminal-side control device being a control unit for controlling the actuation of the remote operation terminal; a suspended load movement operation tool, which is a first operation unit for remotely operating a crane device; and a reference change operation tool, which is a second operation unit for setting an operation direction reference of the suspended load movement operation tool in relation to a vehicle direction reference of a crane. The terminal-side control device calculates the actuation direction of the crane device in relation to the operation of the suspended load movement operation tool, on the basis of a setting value of the reference change operation tool, and transmits the actuation direction to the control device.