Rebar Tying Robot Return Control for Mid-Operation Maintenance
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Solution Overview
Problem
Rebar tying robots face challenges in halting operations mid-process and safely moving to specific positions for maintenance, especially when issues like insufficient wire occur, making it difficult for users to access and resolve problems.
Innovation Solution
The rebar tying robot is equipped with a positional information detection mechanism and a control unit that allows it to halt operations and move to a specific position, such as a rebar end, by executing a return process using longitudinal and lateral movement mechanisms, and calculating the most efficient and safest path based on cost and risk analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the rebar tying robot continues the rebar tying operation without interruption, then productivity is improved, but when issues occur (e.g., insufficient wire), the robot cannot move to a specific position for maintenance, worsening ease of operation and increasing loss of time
Solution Approach 1:
The robot autonomously determines when to halt operations and initiates the return process itself by detecting conditions such as insufficient wire. The control unit automatically calculates the return path and executes movement without human intervention, allowing the system to service itself by moving to maintenance positions.
Solution Approach 2:
The positional information detection mechanism continuously provides feedback on the robot's current position, enabling the control unit to calculate optimal return paths. This feedback loop allows the robot to make real-time decisions about when and how to halt operations and return to specific positions based on detected conditions.
2Ease of operation
If the rebar tying robot halts operation and moves to a specific position, then ease of operation for maintenance is improved, but productivity decreases due to operational interruptions
Solution Approach 1:
The robot calculates and prepares the return path in advance using the positional information detection mechanism before actually halting operations. By having the path ready beforehand, the transition to maintenance mode is streamlined and minimized, reducing the impact on productivity.
3Device complexity
If the robot uses a simple movement mechanism, then device complexity is reduced, but the ability to navigate to specific positions safely and efficiently is worsened
Solution Approach 1:
The positional information detection mechanism serves as an intermediary between the simple movement mechanisms and the control unit. It provides the necessary spatial data that enables the control unit to calculate optimal paths, effectively bridging the gap between simple hardware and complex navigation requirements.
Data Source
AI summary
A rebar tying robot disclosed herein may be configured to perform a rebar tying operation in which the rebar tying robot performs alternately and repeatedly an operation of moving over a primary rebar and a secondary rebar and an operation of tying the primary rebar and the plurality of secondary rebar together at points where the primary rebar and the plurality of secondary rebar intersect. The rebar tying robot may include a control unit, a longitudinal movement mechanism, a lateral movement mechanism, and a positional information detection mechanism configured to detect a current position of the rebar tying robot. The control unit may be configured to execute a return process in which the control unit control the rebar tying robot to move from the current position of the rebar tying robot to a specific position without performing the rebar tying operation.