Achint Chemicals LMS – Industrial Labor Management System
Engineered an offline-first, biometric-backed workforce platform for a chemical manufacturing plant to eliminate attendance fraud and automate payroll. Developed a Next.js 14 web dashboard communicating with a Django REST backend, utilizing Django Channels for real-time WebSocket state updates. Built a custom native Android bridge integrated with a SecuGen USB Scanner for on-device biometric fingerprint matching without network dependency. Architected an offline synchronization system utilizing an Android SQLite queue to store scan logs during network outages, processing them chronologically upon reconnection
0
Payroll Disputes (Backed by hardware-timestamped scan records)
100%
Attendance Audit Trail (Structurally impossible to fake presence)
4
– 7 days Month-end process eliminated (Payroll reports available same day)
The Problem: Managing Labor in a Chemical Manufacturing Plant
Buddy Punching: Workers clocked in for each other, faking foreman signatures.
Ghost Workers: Factory paid for permanent or temporary labor who never showed up.
No Department Tracking: Standard biometric readers only captured gate entry and exit, missing mid-shift transfers.
Late Arrivals Marked On Time: Supervisors marked workers present from shift start regardless of actual arrival.
Payroll Done in Excel: HR spent up to 7 days manually reconciling registers, gate logs, overtime, and advance deductions.
No Real-Time Visibility: Management had no operational awareness of floor headcount and department distribution.
Our Solution: An End-to-End Workforce Intelligence Platform
We built the Labor Management System (LMS) as a purpose-designed platform for the factory floor. Unlike off-the-shelf attendance software, this system was architected around how a chemical plant actually operates—handling shift changes, department transfers, biometric failures, and connectivity issues automatically.
Interactive System Flow
Gate Entry: Worker scans fingerprint at main gate. System records arrival and checks for late entry.
Department Entry: Supervisor scans worker fingerprint on ruggedized tablet when entering the department.
Transfer Between Departments: First supervisor scans out, second scans in. Full movement history is preserved.
Gate Exit: Worker scans out. Open department records automatically close, and hours/overtime are instantly computed.
Payroll Generation: System automatically applies wage rates and deductions based on verified scan events.
Gate Entry: Worker scans fingerprint at main gate. System records arrival and checks for late entry.
Department Entry: Supervisor scans worker fingerprint on ruggedized tablet when entering the department.
Transfer Between Departments: First supervisor scans out, second scans in. Full movement history is preserved.
Gate Exit: Worker scans out. Open department records automatically close, and hours/overtime are instantly computed.
Payroll Generation: System automatically applies wage rates and deductions based on verified scan events.
Custom Web App Architecture & Features
Android Tablet Terminals (Floor Layer)
- Ruggedized tablets mounted at gates and production departments
- Offline support with local scan queuing
- Automatic synchronization when connectivity is restored
Role-Specific Portals
- Dedicated interfaces for Guards, Supervisors, Management, and Admins
- Strict access boundaries enforced at the system level
- Guards see arrivals, Supervisors see department headcount
Web Dashboard (Management Layer)
- Full-screen real-time headcount by department
- Escalation alerts and attendance records
- Accessible from any browser on any device
Automated Payroll Engine
- Wages calculated purely from verified scan data
- Automatic application of worker type, shift, and overtime rates
- Built-in wage matrix for contract labor
Key Features
Biometric verification at both gate and department boundaries
Smart Exception Handling for failed scans (e.g., calloused hands)
Automated overtime and late entry tracking with configurable grace windows
Wage matrix for contract labor reflecting Indian labor laws
Reliable offline connectivity handling with no data loss
Impact & Results
Result
0
Payroll Disputes (Backed by hardware-timestamped scan records)
Result
100%
Attendance Audit Trail (Structurally impossible to fake presence)
Result
4
– 7 days Month-end process eliminated (Payroll reports available same day)
Result
4
– 8% Payroll fraud risk eliminated (Every rupee traceable to a scan event)
Result
✓
Real-Time Floor visibility for management (Live headcount screen)
Tech Stack
Project Gallery
