Md Rahinur Rahman
AI Systems Engineer
Design and development of industrial automation and AI systems for FABINS at NEVOLYN.
Future of Fabric Inspection
FABINSFabric Inspection Automation
Detects every defectMeasures roll dimensionsCertifies fabric quality
Automate Fabric Inspection with FABINS.
AI defect detectionMillimetre measurementFour-Point scoringAutomatic reportsEncoder-locked captureRetrofit installation
The problemTHE BOTTLENECK IN
THE BOTTLENECK IN
EVERY FABRIC ROLL
Bangladesh RMG is a national export pillar, yet quality control at the frame is still one inspector, one pair of eyes, one tally sheet, while competing manufacturing hubs have already automated it.
Manual, Person-Dependent
Grading still relies on an inspector's eye at the frame and not on installed machine capacity.
Fatigue & Monotony
Long shifts watching moving cloth degrade attention which is a physiological limit, not a discipline issue.
Inconsistent Quality
Two or more inspectors grade the same roll differently where human error is unavoidable.
Almost No Usable Data
A tally sheet, not a defect map which is nothing to trace faults back to a machine or batch.
The StrategyRETROFIT, DON'T REPLACE:
RETROFIT, DON'T REPLACE:
UPGRADE YOUR EXISTING MACHINES
Importing complete automated inspection machines from abroad requires millions in capital expenditure and disruptive factory floor redesign. FABINS upgrades the inspection machines already sitting in Bangladeshi mills.
The systemFROM ROLLING FABRIC
FROM ROLLING FABRIC
TO INSTANT REPORT.
Synchronized with real fabric motion to deliver millimeter-accurate defect detection at full production speed.
Step 01
Phase 1 of 6Camera Captures
High-speed industrial camera captures the full fabric width as it moves.
FABINS Inspection Pipeline01 / 06
Step 02
Phase 2 of 6Image Acquisition
Rotary encoder triggers every image line from actual fabric travel for precise sync.
FABINS Inspection Pipeline02 / 06
Step 03
Phase 3 of 6AI Defect Detection
Deep learning vision model resolves sub-millimeter defects on moving fabric in real time.
FABINS Inspection Pipeline03 / 06
Step 04
Phase 4 of 6Classify & Measure (mm)
Distinguishes holes, joints, oil spots, and measures exact physical size in millimeters.
FABINS Inspection Pipeline04 / 06
Step 05
Phase 5 of 6Four-Point Grading
Applies Four-Point penalty rules automatically, including fixed hole penalty overrides.
FABINS Inspection Pipeline05 / 06
Step 06
Phase 6 of 6Report & Dashboard
Issues mill's own official inspection report format, signed and ready for sign-off.
FABINS Inspection Pipeline06 / 06
Built on catalogue industrial hardware
Industrial Grade
Industrial Camera
High-Resolution Color Sensor
Industrial high-resolution camera capturing the full fabric width with precise optical clarity.
Rotary Hardware Pulse
Lens & Encoder
Encoder-Triggered Sync
Calibrated optics and rotary hardware encoder synchronized to real-time fabric roll speed.
Uniform High-CRI LED
Lighting & Conveyor
Controlled Illumination Rig
Uniform high-CRI lighting assembly over a continuous fabric transport rig, eliminating shadows.
Real-Time Pipeline
AI Software & Dashboard
Browser Operator Interface
Real-time defect scoring and digital audit reporting with live operator dashboards.
Defects & Four-Point GradingWHAT IS A FABRIC DEFECT &
WHAT IS A FABRIC DEFECT &
HOW IS IT SCORED?
Fabric faults are detected in real-time and automatically scored using the industry-standard Four-Point System.
1. The ASTM D5430 Four-Point Penalty Rules
1 PointRule 1
Up to 3 inches (75 mm)
Minor defect or short localized yarn imperfection.
2 PointsRule 2
3 to 6 inches (75 – 150 mm)
Medium imperfection extending across several warp/weft yarns.
3 PointsRule 3
6 to 9 inches (150 – 230 mm)
Major imperfection affecting fabric appearance or strength.
4 PointsRule 4
Over 9 inches (230 mm+) or Holes
Critical defect or any physical hole/tear regardless of size.
2. Common Fabric Defects
ASTM D5430 Defect Taxonomy
3. How Total Roll Grade is Calculated
ASTM D5430 Standard Formula
Official Four-Point Formula
Points / 100 yd² = (Total Points × 3,600) ÷ (Yards × Width Ins)
Example Roll Calculation:
Fabric Roll Spec:100 Yards Length × 60 Inches Width
Defects Found:3 Slubs (3 pts) + 1 Hole (4 pts) = 7 Pts
Formula Output:(7 × 3,600) ÷ (100 × 60) = 4.2 Pts
Acceptance Result:PASS (Grade A · Limit: 40 pts)
Standard Buyer Acceptance Thresholds
0 – 20 PtsGrade A (Pass)
21 – 40 PtsGrade B (Pass)
> 40 PtsREJECT / Cut
Essential ASTM D5430 RulesFactory QA Standards
Max 4 Pts / YardNo single linear yard can receive over 4 penalty points.
Continuous FaultsDefects longer than 36" score 4 points per yard automatically.
FABINS automates this entire calculation process instantly as the fabric unrolls.
The Innovators
INNOVATORS BEHINDFABINS
System architecture, hardware integration, computer vision and production software engineered and built by Nevolyn Technology.
Mohammad Ninad Mahmud Nobo
AI Software Engineer
Full-stack web development and machine learning model integration for FABINS at NEVOLYN.
UPDATES & MILESTONES
Progress. Impact. Momentum.
Official announcements, industrial partnerships, capital allocations, and technology breakthroughs shaping the trajectory of NEVOLYN Technology & FABINS.
Featured Milestones
Key institutional breakthroughs and partnerships
Latest News & Updates
Recent updates and institutional announcements
LET'S CONNECT
Reach out for deployments, partnerships, or general inquiries. Our team responds within 1–2 business days.