PIR Sensor for Staircase Safety and Lighting

Introduction

Staircases are high-risk areas for falls, especially in the dark. PIR sensors can trigger lighting when someone approaches, improving safety and saving energy.

Applications

Automatic Stair Lighting

Lights turn on when person approaches staircase, turn off after they pass. Can be zoned to light only the steps being used.

Fall Detection

Detect if someone falls on stairs and trigger alert.

Direction Detection

With multiple sensors, detect whether person is going up or down.

Sensor Placement

• Top and bottom of stairs: Detect approach
• Midway on landing: For fall detection on long staircases
• Under handrail: Discreet placement

Lighting Control Logic

if (topSensor.triggered) {
    lightStaircase(TOP_TO_BOTTOM);
} else if (bottomSensor.triggered) {
    lightStaircase(BOTTOM_TO_TOP);
}

Safety Benefits

Well-lit stairs reduce fall risk. Studies show properly illuminated staircases have 60% fewer accidents.

Conclusion

PIR sensors make staircases safer and more energy-efficient.