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Deutsche Telekom Technik uses AI for quality control on fiber optic construction sites

AI controls fiber optic expansion

Deutsche Telekom Technik uses AI for quality control on fiber optic construction sites

AI boosts fiber optic expansion quality

T‑Systems and Deutsche Telekom Technik developed AI@Construction Monitoring to ensure quality in Fiber-to-the-Home (FTTH) expansion. Using Generative AI (GenAI), the solution analyzes thousands of 3D scans daily, achieving 90% accuracy. Supervisors gain real‑time insights via a traffic light system, enabling faster responses, reducing rework, and cutting costs with CPU‑based operations.

Customer pain points

  • Quality control is required for fiber-to-the-home construction work across hundreds of sites every day
  • Thousands of 3D scans must be analyzed every hour (about 10,000 per day)
  • Relying on random quality checks risks missing defects
  • Lack of full monitoring leads to expensive, time-consuming rework
     

How T-Systems solved it

  • Introduction of a computer vision solution for automatic quality control
  • Pre-qualification of test scans from unlabeled data using GenAI
  • Training of a specialized computer vision model based on DBIZ-YOLO
  • By integrating domain-specific expert knowledge, the solution achieves an F1 score of up to 90 percent for individual building objects
  • Training on AWS (fine-tuning), operation in an internal cluster on CPUs (including inference)
  • Development time: four months
     

With AI@Construction Monitoring, we can comprehensively monitor the expansion of fiber optics throughout Germany. Every hour, our computer vision solution automatically analyzes thousands of 3D scans. Our construction supervisors can intervene quickly in the event of errors and avoid high follow-up costs and quality defects.

Daniel Müller, Deutsche Telekom Technik Digital Business

Business impact

  • Comprehensive monitoring of construction sites
  • Traffic light system for real-time detection of errors and feedback to construction companies
  • Cost-effective operation
  • Construction supervisors achieve high control efficiency
  • Development acceleration through the hybrid use of GenAI and computer vision
     

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About Deutsche Telekom Technik

Deutsche Telekom Technik (DT Technik) is responsible for the planning, construction, and operation of critical technical infrastructure facilities and systems, and technology rollout within Germany for Telekom Deutschland GmbH.

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