Technical Specification Document

Architecture & Engineering Specifications for Prototype Phase

1. System Architecture

The core objective is to develop a 12V Smart Energy Blocking Module. Each block integrates battery cells, Battery Management System (BMS), power interface converters, and smart communication. It functions independently or forms massive energy packs when combined.

2. Target Specifications (Prototype 1)

3. Power Integration & Charging Logic

• USB-C Input Negotiation: The PD controller negotiates with the source for max voltage (e.g., 20V/3A) and uses the internal Buck-Boost charger to safely charge the 12.8V battery.
• External DC / Solar: Accepts variable input and converts it to a safe LFP charging profile.
• USB-C Output (Power Bank Mode): Converts battery voltage to supply up to 60W+ PD output for laptops/mobiles.

4. Plug-and-Play Safety Protocol (Handshake)

To prevent sparking or high inrush current when connecting modules, the backplane logic dictates:

5. Scalability Architecture

Project Presentation Deck

Slide 1

12V-Class Smart Energy Module

Vision: Transitioning from simple battery packs to a smart plug-and-play energy architecture.

Slide 2

Multi-Source Charging Compatibility

USB-C PD

Auto-negotiates with 5V, 9V, 12V, 15V, 20V adapters.

DC & Solar

Handles variable DC sources via internal Buck-Boost.

Slide 3

Module Intelligence & Telemetry

• Identity: Unique ID for every block (e.g., #A017).
• Data: Real-time mapping of Voltage, Current, SOC%, and Temp.
• Health: Tracks SOH% and Cycle count natively.

Slide 4

System Scalability

Building massive energy grids from a single 12V/2Ah building block:

Grid Array	Voltage	Capacity
1x Module	12V	2Ah
10x Parallel	12V	20Ah
4x10 Series-Parallel	48V	20Ah

WiFi Radar Sensing & Security System (New Idea)

Camera-Free, Privacy-Preserving 3D Spatial Intelligence & Security via Radio Waves

1. What is WiFi Radar & CSI Sensing?

Unlike traditional CCTV security cameras that invade personal privacy or conventional infrared (PIR) sensors with severe blind spots, WiFi Radar Sensing transforms ambient 2.4GHz and 5GHz radio frequency (RF) signals into a dynamic, 3-dimensional spatial detection grid.

As humans move through an indoor environment, their bodies subtly refract, reflect, and scatter WiFi multipath signals. By capturing high-resolution Channel State Information (CSI)—subcarrier amplitude and phase jitter—specialized machine learning algorithms reconstruct real-time position, posture, 3D skeletons, and even micro-vital signs (breathing and heart rate) with zero cameras.

2. Key Visual Implementations & Technology Showcase

Leading global open-source research and engineering benchmarks demonstrate the feasibility of converting off-the-shelf WiFi hardware into military-grade spatial radar:

RuView / WiFi DensePose

Deep neural network reconstructing human 3D skeletons (17 COCO keypoints) directly from raw CSI amplitude and phase subcarrier fluctuations.

3D Skeleton & Vital Signs

ESP32-S3 Distributed Mesh Grid

Multi-node transmitter (TX) and receiver (RX) array communicating over synchronized 2.4GHz channels to eliminate spatial blind spots.

Hardware Topology

3. Global Open-Source WiFi Sensing Projects (Benchmark)

Comparative technical evaluation of prominent open-source repositories and research frameworks utilized as the foundational inspiration for this project:

4. Project Development & Implementation Roadmap

1. Urban Cabling Crisis vs. Smart Shared Network

Current multi-operator overhead cabling poses critical structural hazards to Dhaka city. The Smart Ward 41 Common Fiber Highway replaces hundreds of chaotic independent wires with 1 centralized, heavy-duty aerial line.

2. High-Durability Infrastructure: Figure-8 Armored Optical Cable

Unlike fragile drop fibers deployed by informal ISPs, the Smart Ward 41 backbone utilizes self-supporting Figure-8 Aerial Armored Fiber engineered for two decades of all-weather operation.

3. Triple-Play End-to-End System Architecture

One unified fiber delivers Gigabit Internet, Digital CATV (Dish), and BTCL IP Telephony directly to subscriber homes through an integrated 3-stage distribution chain.

4. Zero Tolerance: Anti-Theft OTDR Laser Security Solution

To eliminate cable theft, illegal line cutting, and sabotage, the network integrates automated Optical Time-Domain Reflectometry (OTDR) laser sensing that monitors physical fiber integrity in real time.

5. Regulatory Compliance & Partnership Framework

The business model is 100% compliant with Bangladesh Telecommunication Regulatory Commission (BTRC) policies through strategic partnerships with licensed telecom stakeholders.

6. South Musundi Pilot Deployment & Team Organogram

The initial pilot deployment is focused on South Musundi Block (দক্ষিণ মুসুন্দি), engineered to handle 1,000 baseline connections scalable to 4,000 households.

7. Triple Benefit Matrix for Civic Leadership

A single strategic initiative unlocking three massive socio-economic returns for Ward 41:

8. Comprehensive Infographic & Blueprint Presentation Gallery

Click on any high-resolution slide or master infographic below to inspect technical schematics and presentation assets in full-screen view:

1. Executive Summary & Urban Waste Crisis

Traditional informal waste collection in Ward 41 has caused severe public inconvenience due to irregular schedules, open roadside overflow, high service charges (100 Taka), and daytime traffic congestion. The Cleanliness Masterplan introduces Dhaka's first Zero-Dumping Zone powered by institutional discipline, digital surveying, and community leadership.

2. The 3 Pillars of Sustainable Urban Cleanliness

The operational framework synchronizes policy, physical infrastructure, and human capital into an automated civic ecosystem:

3. Implementation Roadmap & Recognition Awards

The structured 6-phase rollout ensures smooth transition, high civic morale, and measurable cleanliness standards:

4. Cleanliness Blueprint & Infographic Presentation Deck

Click on any high-resolution slide or master blueprint to inspect urban cleanliness models in full-screen view:

1. Executive Summary & The Bioplastic Paradigm

Conventional petroleum-derived plastics require hundreds of years to decompose, suffocating terrestrial ecosystems, oceans, and urban drainage networks. Polyhydroxyalkanoates (PHA) are naturally synthesized biopolyesters produced via bacterial fermentation that completely degrade into natural carbon, water, and organic biomass in natural soil conditions.

The PHA Bio-plastic Ball Project, engineered by Md. Aminul Hasan, establishes a rigorous empirical benchmark testing various material proportions, binders, drying/curing regimes, and soil pH dynamics to optimize mechanical integrity and controlled environmental degradation.

2. Manufacturing Process Flowchart

The systematic 5-stage synthesis pipeline engineered for structural consistency:

3. Material Proportion Matrix & Empirical Batch Results

Comparative technical analysis across 4 experimental formulations evaluated over a 4-week soil burial cycle:

4. Environmental Variables & Curing Dynamics

Key findings from comparative testing under diverse environmental parameters:

5. Complete 14-Slide Presentation Deck Gallery

Click on any slide below to inspect high-resolution experimental charts, process schematics, and comparative degradation graphs in full-screen view: