Student Innovation Project

Student Innovation Project (SIP)

At UAT, the Student Innovation Project serves as a capstone experience where students research, design, prototype, validate, and document an original technical project within their degree discipline. My SIP is focused on applying robotics, simulation, and structural validation methods to a real infrastructure inspection challenge.

Rail-Mounted GPR Inspection Platform

Subway Sentinel

A rail-mounted robotic inspection platform designed to strengthen safety and predictive maintenance across New York City’s aging subway infrastructure—starting with high-resolution Ground Penetrating Radar (GPR) scanning for early detection of subsurface risk.

Primary Sensor: GPR Targets voids, water intrusion, ballast deterioration, and structural anomalies beneath track and tunnel interfaces.
Rail-Integrated Platform Mounts directly to existing track geometry for repeatable corridor scanning.
MVP First, Expandable Later Architecture supports future modules such as LiDAR, thermal, and low-light imaging without redesigning the core platform.
Subway Sentinel Logo
Current Project Status — Updated May 12, 2026

SIP408 Week 1: Requirements and Assumptions

Subway Sentinel is currently in SIP408 Week 1: Requirements and Assumptions / Design Freeze Start. SIP311 established the project foundation, including the technical field, background research, prior art review, innovation claim, evaluation criteria, goals, MVP scope, and initial RobotStudio/static FEA prototype direction. SIP408 is now focused on converting the approved concept into a functional MVP package through tunnel geometry validation, track gauge assumptions, ABB robot selection, rail platform modeling, load case definition, structural validation, EOAT/GPR integration, and RobotStudio motion validation.

Schedule Risk / Scope Note — Updated May 12, 2026

Week 3 will likely show functional direction, not the full MVP.

The course target is to have the project functional by Week 3 of SIP408. Based on the current engineering scope, Week 3 will likely demonstrate the first functional design direction through railcar/platform geometry, wheel/rail interface modeling, and robot mounting layout. Full structural FEA, anti-tip validation, EOAT/GPR integration, and complete RobotStudio inspection cycle evidence are planned later in SIP408.

Completed So Far

SIP311 established the project foundation and moved Subway Sentinel beyond the idea stage. The current work is now focused on turning that approved concept into documented engineering evidence.

SIP Concept ApprovedProject direction was approved during SIP311.
Technical Field DefinedRobotics, infrastructure inspection, GPR, and tunnel maintenance scope established.
Prior Art ResearchedExisting inspection methods and related systems reviewed.
Innovation Claim FormalizedCore contribution centered on the rail-mounted robotic inspection platform.
Evaluation Criteria SetInitial criteria created for structural, motion, and system-level validation.
MVP Scope DeclaredProject limits and minimum viable prototype direction documented.
RobotStudio Direction StartedInitial simulation approach established for motion feasibility.
Motion Feasibility DirectionPreliminary reach, tunnel arc, and tool orientation strategy created.
FEA Strategy SelectedStatic FEA validation planned for frame stiffness, deflection, and safety factor.

Project Description

Subway Sentinel is a robot that operates on existing subway tracks to help keep New York’s heavily used system safer and in better condition. Built around a rail-mounted platform carrying an industrial robotic arm, the system positions a Ground Penetrating Radar (GPR) unit to scan beneath the track bed and adjacent tunnel interfaces—revealing conditions that are difficult or impossible to verify visually. By enabling repeatable subsurface inspection without requiring personnel to enter hazardous or hard-to-access tunnel environments, Subway Sentinel is designed to support routine scanning and data-driven decisions that protect infrastructure over the long term.

Innovation Claim

The core innovation is the inspection platform itself: a rail-mounted, six-axis industrial robotic system engineered for tunnel environments to deliver precise, repeatable GPR positioning at scale. This approach enables faster, more consistent subsurface inspection than manual methods and reduces operational risk by shifting high-detail scanning to a controlled robotic workflow. The result is safer inspection practices and higher-quality data to support predictive maintenance planning.

Key Features

  • Rail-Integrated Platform Mounts directly to existing subway tracks for stable, corridor-wide inspection without disrupting infrastructure.
  • Precision Robotics Industrial arm enables controlled, repeatable GPR placement for consistent subsurface data acquisition.
  • GPR Subsurface Inspection Detects voids, water intrusion, displacement, ballast degradation, and anomalies beneath track beds and tunnel interfaces.
  • Worker Risk Reduction Reduces the need for manual inspection in confined, hazardous tunnel environments.
  • Scalable Inspection Architecture Designed to support future sensor integration and expanded diagnostic functions.
  • Predictive Maintenance Enablement Provides early detection insights to support data-driven maintenance planning and long-term asset preservation.

Current SIP408 Engineering Focus

Updated May 12, 2026. The current focus is to freeze the assumptions that drive the CAD model, platform geometry, load case, structural validation, and RobotStudio proof-of-concept.

Tunnel GeometryFinalizing the inspection envelope and subway tunnel reference model.
Complete
Track InterfaceFreezing track gauge and wheel/rail assumptions for platform modeling.
Complete
Robot SelectionConfirming ABB robot model, payload, reach, loads, and base bolt pattern.
In Progress
Platform DesignStarting railcar/platform geometry and robot mounting strategy.
Next
ValidationPreparing for FEA, deflection checks, anti-tip stability, and RobotStudio cycle validation.
Planned

Prototype Roadmap Snapshot

This summary shows the major project phases without turning the Overview page into the full engineering log. The complete week-by-week roadmap and dated updates are tracked on the Engineering Process page.

SIP311Concept approval, prior art, innovation claim, evaluation criteria, and MVP scope.
Complete
SIP408 Weeks 1–3Requirements freeze, assumptions log, robot selection, and rail platform geometry.
In Progress
SIP408 Weeks 4–5Static FEA, deflection validation, and anti-tip stability proof.
Planned
SIP408 Weeks 6–8EOAT/GPR integration, RobotStudio inspection cycle, and MVP package.
Planned
SIP409Final demo, evaluation plan, technical appendix, and showcase presentation.
Planned

Design-Phase Prototype

Subway Sentinel is currently being developed as a design-phase prototype using CAD modeling, RobotStudio simulation, and structural validation methods. The MVP focuses on proving that a rail-mounted robotic platform can support controlled GPR positioning within a subway tunnel inspection envelope. During SIP408, the prototype will be validated through geometry, load case definition, static FEA, anti-tip analysis, EOAT/GPR integration, and RobotStudio inspection path simulation.

Engineering Skills Demonstrated

This project is designed to show the technical process behind the concept, not just the final render. The work connects robotics engineering, mechanical design, infrastructure inspection, simulation, and validation into one documented system.

Robotics system architecture
Industrial robot selection and reach validation
CAD modeling and mechanical layout
Rail platform and wheel/interface design
Load case development
Static FEA and structural validation
EOAT and sensor integration planning
RobotStudio simulation and path programming
Risk identification and engineering documentation
Infrastructure inspection and predictive maintenance concept development

Prototype Visual Overview

Subway Sentinel Design-Phase Prototype Overview