Active Protocol: SASA Structural Digital Twin OS

Infrastructure is
Awake.

Transforming municipal assets, highway viaducts, and critical public infrastructure into 24/7 self-diagnosing digital twins. Replacing subjective 5-year visual audits with high-frequency edge strain telemetry and automated IS 1893 compliance.

ASSET:
PRATIBIMBHI 3D DIGITAL TWIN60 FPS WebGL
Asset ID: ULB-MC-409
12-Story RC Twin Frame (IS 1893:2016)
S_twin Health94.8 / 100
Active Nodes6 / 6 Online
KAV-BM-12Transfer Girder MidspanNOMINAL
Location: Level 2 Primary Beam · 3D Coordinates: [0, 4.2, -2]
Dynamic Strain305 με
Modal Freq2.45 Hz
Temperature28.4°C
Lateral Drift1.2 mm
Live Load45%
Seismic (g)0g

Corporate & Brand Governance Hierarchy

Legally structured multi-tier engineering technology framework

VERIFIED ENTITY STRUCTURE
LEVEL 01 · PARENT ENTITY

CogniStruct Pvt. Ltd.

Registered corporate legal entity. Physics-informed AI, civil tech deep-tech incubation, and structural engineering research operations.

cognistruct.in
LEVEL 02 · ENGINEERING BRAND

SASA Engineers

Flagship civil engineering brand. Cloud load engines, finite element analysis (FEA), and IS 1893:2016 structural computation platforms.

sasa.engineer
LEVEL 03 · PRODUCT LINE

SASA PRATIBIMBHI

Structural Digital Twin Platform. Hardware telemetry, autonomous baseline learning (ANUBHAV), and continuous unified risk scoring.

Product Line under SASA Engineers● TWIN OS ACTIVE
Attribution: SASA PRATIBIMBHI is a product line of SASA Engineers, governed by CogniStruct Pvt. Ltd.Delhi & Hubballi R&D Hubs
4-STAGE DATA ACCELERATION CHAIN

From Physical Micro-Strain to
Unified Risk Scoring

Continuous physical-to-digital data pipeline converting edge sensor telemetry into automated post-disaster clearances and portfolio underwriting scores.

Core 4-Stage Data Chain Architecture

End-to-end continuous telemetry from physical concrete joints to enterprise risk dashboards

4-STAGE RESILIENCE PIPELINE
STAGE 01 · EDGE SENSING HARDWAREView Dedicated KAVACH Page

KAVACHEdge Hardware Sensor Nodes

Ruggedized edge sensor hardware affixed to structural critical nodes (beam-column joints, bridge piers, shear wall foundations). Captures high-frequency micro-strain, 3-axis vibration FFTs, inclination, and thermal expansion.

PRIMARY SYSTEM OUTPUT
Raw strain (με), acceleration (g), modal frequency (Hz) telemetry packets
Technical SpecificationsIS STANDARDS
Sampling Rate100 Hz Continuous Dynamic
Network MeshThread / OpenThread 2.4GHz
EnclosureIP68 Industrial Sealed
Power Autonomy5-Year Lithium / Energy Harvest

Hardware-to-Cloud Telemetry Pipeline

Continuous data flow from concrete sensor nodes to municipal dashboards

EDGE-TO-CLOUD TLS 1.3
STEP 01

Kavach Edge Nodes

Piezoelectric & MEMS sensors on critical joints (100Hz)

STEP 02

Thread Mesh

Low-power 2.4GHz IEEE 802.15.4 self-healing local mesh

STEP 03

Site Gateway

Ruggedized on-premise compute edge buffer (IP67)

STEP 04

MQTT / 4G Cellular

Encrypted TLS 1.3 telemetry transport with failover buffer

STEP 05

Pratibimbhi Cloud

High-throughput time-series ingestion & calibration cluster

STEP 06

Twin OS Engine

IS 1893:2016 finite element physics transfer model

STEP 07

Unified Scoring Model

Live 0-100 health score & automated Raksha alert triage

MUNICIPAL & INSURANCE DECISION ENGINE

Portfolio Structural
Health Scoring Matrix

Evaluate building stock risk distributions, audit days saved, and unmitigated exposure across hundreds of civic assets.

Interactive Portfolio Risk & Exposure Simulator

Simulate building stock risk distribution, manual audit overhead, and unmitigated exposure

UNDERWRITING MODEL
150 Structures
10 (Local Ward)500 (City ULB)1,000+ (State Portfolio)
28 Years
5 Yrs (New Stock)30 Yrs (Mid-Life)70 Yrs (Aging Masonry/RC)

Simulated Portfolio Health Distribution

150 Total Assets
47%
39%
14%
Tier 1 · Nominal
70
47% Stock
Tier 2 · Attention
59
39% Stock
Tier 3 · High Risk
21
14% Critical
AUDIT VELOCITY MULTIPLIER
2,100 manual days
Reduced to 7.5 continuous days (99.8% saved)
UNMONITORED EXPOSURE RISK
636.3 Cr. Liability
Estimated replacement & downtime value of Tier 2 & 3 structures
Deploy Pilot Monitoring for ULB or Insurance Portfolio
14-day baseline onboarding with KAVACH sensor deployment
Request Portfolio Audit
COMPUTATIONAL MECHANICS LAB

SASA Engineering Engines

Direct access to our IS code compliant computational mechanics tools

IS 1893:2016 & IS 456 VERIFIED

Structural Load Engine

Calculates factored gravity loads, wind pressure, and seismic base shear (V_b = A_h · W) across seismic zones II to V.

Launch Load Engine

Beam Force & Deflection

Computes maximum bending moments, shear forces, and midspan deflection with IS 456 L/350 deflection compliance checks.

Launch Force Engine

RC Section & Ductility

Audits reinforced concrete beam sections for neutral axis depth (x_u/d), moment capacity (M_u), and under-reinforced ductility modes.

Launch RC Design Lab
GOVERNANCE & ENGINEERING LEADERSHIP

Built by CogniStruct Pvt. Ltd.
Under SASA Engineers Brand

Under the leadership of Vishwanath M. Koliwad, CogniStruct Pvt. Ltd. builds the bridge between Computer Science and Civil Infrastructure. SASA PRATIBIMBHI is our flagship structural digital twin platform, operated out of our New Delhi AI core and Hubballi hardware validation nodes.

New Delhi Node (Core AI & Policy)·Hubballi Node (Hardware R&D)