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Keep Your Data. Keep Your Power. | Bettroi Whitepaper
White Paper | 2025 Edition

Keep Your Data.
Keep Your Power.

How To Build Private AI With NVIDIA Micro Computers

01.

Executive Summary

Most people think Artificial Intelligence (AI) means sending data to the cloud and getting smart answers back. For many real-world businesses, that is not always acceptable. Data is sensitive, internet links are unreliable, and nobody wants critical operations to depend on someone else’s server.

This white paper explains how to build local, fully offline AI services using NVIDIA micro computers such as the Jetson family. These small devices combine a GPU for fast AI computations and a CPU for general processing, with enough memory and storage to run real models at the edge.

You will learn how to choose the right device, set up a cloud-free stack, design vision/speech services, and handle governance without depending on outside servers. Wherever possible, we recommend open source software to keep you in control.

02. Why Edge AI Matters Now

Privacy and Trust

Your video, audio, or transaction data never leaves the building. This keeps customers, regulators, and risk committees comfortable, especially in healthcare and finance.

Latency and Response

A LAN is faster than the internet. For safety alerts, process control, or on-the-spot recommendations, local processing beats remote processing every time.

Cost Control

Cloud GPU pricing grows silently. A one-time investment in a Jetson-based edge node is often cheaper over a 2-3 year period for steady workloads.

Resilience

If the internet fails, your AI does not. Production lines and clinics keep working because decisions are made right where the data is born.

"Think of edge AI as your own mini-cloud in a box. Same logic, far more control."

03. The NVIDIA Jetson Family

Main Options

  • Jetson Nano Entry level. Good for basic image classification and simple object detection. Not for heavy LLMs.
  • Jetson Orin Nano / NX Mid to high range. Suitable for real-time analytics, speech models, and compressed LLMs.

Hardware Cost Ranges

Device Approx Cost (USD)
Jetson Nano Dev Kit $150 - $250
Xavier NX Dev Kit $350 - $600
Orin Nano / NX Dev Kit $400 - $900

* Indicative development kit prices. Volume module pricing may vary.

Quick Selection Guide

Basic vision? (People present/absent)

Jetson Nano

Real-time analytics? (Multiple cameras)

Xavier NX

On-device LLMs or multi-modal?

Orin Family

04. Cloud-Free AI Stack

4.1 Install JetPack

NVIDIA JetPack SDK includes Ubuntu Linux, CUDA, cuDNN, and TensorRT. It basically gives you an AI-ready OS with all drivers pre-installed.

4.2 Prepare Environment

  • Install Docker: Package apps for predictable deployment.
  • Python Tooling: Python 3, pip, and git.
  • Air Gap Plan: Download everything to USB if going fully offline.

The Stack

Your App (Python, FastAPI)
Docker Containers
NVIDIA JetPack SDK
Ubuntu CUDA TensorRT
NVIDIA Jetson Hardware

05. Use Cases

Computer Vision

Counting people, detecting PPE, defect monitoring.

MODELS: YOLO, SSD
Speech & Audio

Wake-words ("Hey Doctor") and offline transcription.

MODELS: Vosk, Whisper
Local Chat

Answering FAQs, summarising logs privately.

MODELS: Llama (4-bit)

06. Optimisation

Models must be compressed for the edge. Use this pipeline:

1

Convert to ONNX

Export from PyTorch/TensorFlow to standard format.

2

TensorRT Engine

Convert to engine. Apply FP16/INT8 quantization.

3

Benchmark

Use `tegrastats` to check load. Adjust resolution/batch.

07. Architecture & Stack

Input
IP Cameras (RTSP)
Microphones
Processing (Jetson)
ai-vision-service
ai-audio-service
db-service
Action
Web Dashboard
Local Alerts

08. Handling Data

Databases: SQLite (single), PostgreSQL (multi).
Backup: Local USB or NAS.
Updates: Ship Docker images via USB/LAN.

09. Security

  • × Disable unused ports.
  • SSH with keys only.
  • Auth on all dashboards.
  • Log all admin actions.

Governance: Define retention policies. Who sees raw video? Periodically review bias.

11. First Prototype

  1. 01. Get Jetson Orin Nano kit.
  2. 02. Install JetPack & Docker.
  3. 03. Pick simple use case (e.g., people detection).
  4. 04. Convert YOLO-nano to TensorRT. Wrap in FastAPI.
  5. 05. Build basic HTML frontend drawing bounding boxes.

12. Pilot Costs

$10k - $30k

Typical Pilot Project Budget

Design $3k - $7k
Build $8k - $25k
Maint. $300 - $1k/mo

How Bettroi Can Help

NVIDIA Jetson-based edge AI is not about collecting gadgets. It is about building a practical, ethical, and resilient layer of intelligence inside your business.

Contact Bettroi
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