SafeCross : Système Intelligent de Sécurité Piétonne

Découvrez SafeCross, un projet STI2D innovant de bollards rétractables intelligents avec monitoring de la qualité de l'air et de l'énergie.

#sti2d#sécurité-routière#arduino#smart-city#ingénierie#urbanisme#iot

Watch
Pitch

SafeCross

Système Intelligent de Sécurité Piétonne

STI2D – Énergie & Environnement

Oral Final

Présentation Orale Finale — 2026

Made by

Introduction

What is SafeCross?

An intelligent pedestrian safety system that secures crossings using retractable bollards, while monitoring energy performance and air quality.

Pedestrian Safety

Energy Monitoring

Air Quality Tracking

Made by

How SafeCross Works

Detect

Weighing scale + Pressure sensor detect pedestrians

Evaluate

Is someone crossing? Smart decision logic

Act

Bollards stay DOWN (pedestrian present) or RISE (area clear to block vehicles)

A smart urban solution designed to reduce accidents in modern cities.

Made by

Hardware Components

Arduino Uno + Grove Base Shield integration

Sensors

Load Cell

Weight detection

Pressure Sensor

Automatic safety

Emergency Button

Manual intervention

Environment + Actuators + Display

DHT11

Temperature & Weather

MH-Z19B

CO2 / Air Quality

DC Motor + Shield

Bollard control

Buzzer

Audio alert

LEDs

Visual signals

Grove 16×2 LCD

Status & Energy display

Made by

MY ROLE

Security Logic — Version 26

STANDBY MODE

Monitor weight scale → Pedestrian detected? → Disable motor

PRE-LAUNCH CHECK

Check Pressure Sensor + Emergency Button → Obstacle detected? → CANCEL cycle

RISE ACTION

Bollard rises → Motor activated

EMERGENCY INTERRUPT

Button pressed OR sensor hit → STOP + PWM 255 → Instant retraction

safecross_v26.ino

if (emergency) {
  motorPWM = 255;
  retract();
  buzzer.beep();
}

Made by

My Role

Monitoring & Stability — Version 2.3

Data Smoothing

Weighted Average Algorithm

CO2 and Temperature values are smoothed for stable, reliable readings on the LCD screen.

Display Sequence

millis() Rotation — Every 10s

LCD screen rotates between 3 modes:

🌡️ Weather → 🌿 Air Quality → ⚡ Energy Balance

Multitasking

Non-Blocking Logic

Emergency Button always monitored — even while the LCD is updating. No delays used.

Result: A fully responsive system with no dead zones in the monitoring loop.

Made by

Conclusion

SafeCross — Project Status 2026

Information Chain — 100% Functional

Manual Emergency Stop — Fully Validated

All Safety Loops — Tested & Operational

Mock-up (Maquette) — Ready for Final Assembly

"This project allowed me to bridge the gap between software logic and industrial safety."

System Validation

100%

Motor Response ✓ Perfect

Sensor Accuracy ✓ Validated

LCD Display ✓ Stable

Thank you for your attention. Questions?

Made by

DESIGNER-MADE
PRESENTATION,
GENERATED FROM
YOUR PROMPT

Create your own professional slide deck with real images, data charts, and unique design in under a minute.

Generate For Free