Powerline Cable Robot Stabilization for Autonomous Obstacle Avoidance
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Solution Overview
Problem
Conventional robotic systems installing fiber optic cable on powerlines face instability during obstacle avoidance, requiring significant human intervention and increasing 'make ready' costs due to the need for temporary removal and reattachment to navigate around obstacles.
Innovation Solution
A robotic system with a stabilization subsystem, including thrusters, gyroscopes, and inertial measurement units, that maintains the robotic system in an unstable equilibrium configuration, allowing it to autonomously avoid obstacles by adjusting its position and orientation relative to the powerline, thereby reducing the need for human intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the robotic system operates in an unstable equilibrium configuration to avoid obstacles, then the adaptability and obstacle avoidance capability are improved, but the stability of the system deteriorates
Solution Approach 1:
The robotic system transitions from a static stable configuration to a dynamic unstable equilibrium configuration, allowing the payload subsystem to be extended vertically upward to avoid obstacles while the stabilization subsystem actively maintains balance through real-time control adjustments
Solution Approach 2:
The stabilization subsystem acts as an intermediary between the unstable payload extended configuration and the powerline, using thrusters and control algorithms to mediate the instability and maintain overall system equilibrium during obstacle avoidance operations
2Reliability
If the robotic system requires human intervention for obstacle avoidance, then the stability and control are improved, but the productivity and efficiency deteriorate
Solution Approach 1:
The robotic system performs self-stabilization and self-control through its integrated stabilization subsystem, which autonomously senses instability and activates thrusters to correct position and orientation without requiring human intervention, thereby maintaining reliability while improving productivity
Solution Approach 2:
The stabilization subsystem continuously monitors the robotic system's position and orientation relative to the powerline and provides real-time feedback control, automatically adjusting thruster activation to maintain stability during autonomous obstacle avoidance operations
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The stabilization subsystem enables the robotic system to maintain stability and continue fiber optic cable installation without significant human intervention, reducing 'make ready' costs and enhancing the efficiency of the installation process.
Implementation Method 1
at least one inertial measurement unit configured to sense at least one of lateral movement or axial rotation of the robotic system
Implementation Method 2
activating at least one upper thruster positioned on the robotic system above the powerline to substantially laterally align a center of gravity of the robotic system with the powerline
Implementation Method 3
activating at least one lower thruster positioned on the robotic system closer to the powerline than the at least one upper thruster to inhibit the lateral sway of the robotic system
Implementation Method 4
A robotic system with a stabilization subsystem, including thrusters, gyroscopes, and inertial measurement units
Data Source
AI summary
The disclosed systems for suspending cable (e.g., fiber optic cable) from an overhead powerline may include a payload subsystem for housing and dispensing a cable, a rotation subsystem for winding the cable around the powerline, an extension subsystem for raising at least a portion of the payload subsystem vertically upward from the powerline, a stabilization subsystem for stabilizing the system at least when the payload system is extended away from the powerline by the extension subsystem, and a drive subsystem for driving the system along the powerline. Various other related systems, devices, mechanisms, and methods are also disclosed.