NatthakritBenjapatanamongkol

陳其骏

Education

2025 – present
King Mongkut’s Institute of Technology Ladkrabang
Freelance AI engineer
- AI-powered HR chatbot, lead developer. Built and tuned a full-stack RAG pipeline with Python, AWS Bedrock and a reranker model, then containerised it with Next.js, Python and Docker.
- KMITL central lab chatbot, project lead. Led a two-person team building a RAG pipeline with a reranker over CSV files and website data, in Python on AWS Bedrock, with a Streamlit UI that can answer with images.
Jul – Oct 2024
G-able Company Ltd.
AI engineer intern
- ITSM chatbot. Built a multi-agent chatbot with LangChain for the IT service management department, with SQL query tools, API data retrieval and web search.
Jun – Jul 2024
Fukuoka Institute of Technology, Japan
Internship program
- Built a racing simulation in Unity for research and training.
- Designed and programmed a line-tracking robot with embedded, real-time processing.

One research write-up, two live projects, and three more builds.

Research · In development

Can a webcam tell a phone you are using apart from a phone that is just lying on your desk?

All five hold

Held for the dwell time

Alert fires

Fig. 1 — All five must hold for the dwell time. The dashed one may be dropped.

Models: EfficientDet-Lite0 (float32) · BlazeFace · fully offline
Finding: The int8 model saw only noise on webcam frames. Float32 works, so Focus uses float32 only.
Open question: Is a phone moving in hand separable from the detector’s box jitter? If not, that check is dropped.

Project · LLM · RAG

Answers questions from NeoCare staff and the service team.

Method: LLM + retrieval-augmented generation (RAG)
Intended use: Internal support for NeoCare staff.
Limits: Access is restricted to Thailand by Cloudflare; the demo will not load from other countries.

Project · Web app

Save links now, find them again when you need them.

Stack: Next.js · Drizzle ORM · Postgres · better-auth
Intended use: A searchable personal stash instead of a feed or a pile of tabs.
Limits: Requires a Google sign-in.

2025
Emotion classification
Takes the text from a speech-to-text model and sorts it into three emotion categories with OpenAI GPT-4.
Speech-to-text · GPT-4
2024
Parking reservation system
Capstone. A Raspberry Pi runs the lot: ultrasonic sensors check spots in real time and OCR on the camera feed verifies each car. A Next.js interface takes reservations and checks licence plates against the backend.
Raspberry Pi · ultrasonic · OCR · Next.js
2023
Driver drowsiness detection
A Raspberry Pi and camera watch the driver and raise a real-time alert. A custom YOLO model trained on a labelled dataset detects visual signs of drowsiness with 97% accuracy.
Raspberry Pi · YOLO