UAV Robotic Tower Audit System
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Solution Overview
Problem
The existing methods for cell tower installation, maintenance, and wireless coverage testing are hazardous, costly, and inefficient, particularly due to the need for frequent tower climbs and the limitations of unmanned aerial vehicles (UAVs) in stabilizing robotic arms and providing accurate 3D modeling and site surveys.
Innovation Solution
The implementation of UAV-based systems and methods that include video capture for close-out audits, robotic devices for tower operations, tethered UAV configurations for stability, and 3D modeling using location identifiers for accurate site representation, enabling reduced tower climbs, improved safety, and efficient installation and maintenance processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If tower climbers perform maintenance and audit work manually, then direct hands-on access to cell site components is achieved, but safety risks and operational costs increase significantly
Solution Approach 1:
A robotic device serves as an intermediary between the operator and the cell site components. The robotic device includes a robotic body that can be positioned at the cell site, a robotic arm with end effector tools, and a tethered or autonomous control system. This intermediary robot performs the dangerous climb and hands-on maintenance work, eliminating the need for human tower climbers while maintaining direct component access capability.
Solution Approach 2:
The patent replaces the mechanical system of human tower climbers with an automated robotic system. The robotic device uses robotic arms, end effector tools, and automated positioning mechanisms to perform maintenance, audit, and repair work that previously required manual human labor at heights of hundreds of feet.
2Object-affected harmful factors
If UAVs are used to perform cell tower operations, then tower climb safety is improved, but stabilization of robotic arms and counterbalancing complexity increases
Solution Approach 1:
The system is segmented into separate functional modules: a UAV for aerial transport and positioning, a robotic body for local manipulation, and a control system. The robotic body segments the stabilization function from the aerial vehicle, allowing the UAV to focus on flight stability while the robotic body handles precise local operations with its own stabilization mechanisms.
Solution Approach 2:
The robotic body acts as an intermediary between the UAV and the cell site components. It receives positioning commands from the UAV, stabilizes itself locally at the cell site, and performs the maintenance operations. This intermediary function separates the complex aerial stabilization requirements from the precise local manipulation requirements.
3Measurement precision
If conventional photo-based 3D modeling is used, then site surveying is performed, but accuracy is compromised due to location tracking variations
Solution Approach 1:
The patent replaces conventional photo-based 3D modeling with laser scanning technology. The robotic device includes a laser scanner that actively measures distances and creates a point cloud representation of the cell site. This active measurement system provides precise 3D coordinates without relying on passive photo analysis and GPS location tracking, eliminating the accuracy compromises of the conventional method.
Solution Approach 2:
The laser scanner emits laser beams that reflect off surfaces and return to the scanner, creating a point cloud map. This active optical measurement system provides precise spatial information by measuring the time of flight and phase shift of the laser, creating accurate 3D models that are not dependent on image processing or GPS accuracy.
4Reliability
If multiple separate processes are used for installation, maintenance, and auditing, then comprehensive coverage is achieved, but time and resource consumption increase
Solution Approach 1:
The robotic device is designed as a universal platform that can perform multiple functions: installation of equipment, maintenance of existing components, auditing of cell site conditions, and collection of as-built documentation. The robotic body can be equipped with different end effector tools for each function, and the same robotic system can conduct all these activities at a cell site during a single visit, eliminating the need for multiple separate process visits.
Solution Approach 2:
The robotic system enables continuous documentation and verification during the same operational visit. As the robotic device performs installation or maintenance work, it simultaneously captures video, audio, and 3D scan data, and updates the digital twin model in real-time. This continuous action eliminates gaps between work performance and documentation, ensuring comprehensive coverage without requiring additional time for separate audit processes.
Data Source
AI summary
A close-out audit method performed at a cell site subsequent to maintenance or installation work includes, subsequent to the maintenance or installation work, obtaining video capture of cell site components associated with the work; subsequent to the video capture, processing the video capture to obtain data for the close-out audit, wherein the processing comprises identifying the cell site components associated with the work; and creating a close-out audit package based on the processed video capture, wherein the close-out audit package provides verification of the maintenance or installation work and outlines that the maintenance or installation work was performed in a manner consistent with an operator or owner's guidelines.