DENIOS Project

An internship project (~4.5 months)
1st internship: July 2023 - August 2023
2nd internship: May 2024 - July 2024

>> Visit the Website (access required - dev version) <<

Overview

This project was carried out during my internship at DENIOS in Germany.

The main goal was to develop a web application that could:

• Compute thermal evolutions inside a heating chamber.
• Manage a local database.
• Provide tools for graph visualization.
• Make a study of faisaibility for a RFID project.

This project was part of the company's effort to improve the theoretical understanding of their products and to develop tools for better control over their processes. These tools were aimed at helping employees and clients make informed decisions, especially in the context of recent energy crises.

Key Features

• Development of a thermal simulation tool for heating chambers.
• Database management and an interface for accessing and editing data.
• A tool for visualizing measurement data from sensors.
• An error diagnostics tool with proposed solutions.
• Improved understanding of the Human-Machine Interface (HMI).
• Contribution to a major RFID project.

Technologies Used

Web Development & Documentation

Name	Badge	Purpose
HTML5		Structure of the website
CSS3		Design and layout of the website
JavaScript		Core logic of the website and simulations
Jest		Testing framework for JavaScript code
Bootstrap		Website design and responsiveness
Plotly		Dynamic graphs for data visualization
ChartJs		Graphs for interactive results display
Vue.js		Framework used for creating the interactive documentation
VitePress		Static site generation for the documentation
Markdown		Lightweight markup language for writing documentation
LaTeX		Typesetting system for mathematical equations and scientific writing

Database & Backend

Name	Badge	Purpose
LAMP Stack		Full-stack solution for web development
Apache2		Web server for hosting the PHP application
MySQL		Database system for storing and managing data
PHP		Backend for database management and dynamic content generation

Hosting & Version Control

Name	Badge	Purpose
OVH		Hosting provider for the private dev web application
Cloudflare		Web infrastructure and website security company
Amazon Web Services		Hosting provider for the public company web application
GitHub		Version control and collaboration platform for the dev project
GitLab Enterprise		Internal GitLab instance for the company project

Challenges and Learnings

1. Thermal Simulation Tool:
   • Simulates energy consumption and heating times for the chamber.
   • Generates interactive graphs.
2. Database Integration:
   • A local database was implemented, replacing previous JSON file-based data storage.
   • The system allowed for dynamic changes via the web interface without modifying the code.
3. User Interface:
   • Focused on ease of use with an intuitive search function for large tables.
   • Flexible modal forms that can adapt to various tasks like viewing, editing, and creating new entries.

Showcase

Database Management

Database Interface	Edit Data

Heating Chamber Simulation

Input Form

Simulation Results

Graph Visualization & HMI Help Tool

Graphs	HMI Tree

Error Diagnostics

Error Diagnostics Menu	Error Details