How Do The Three Major Sensing Technologies Of A Smart Door Work Together?

May 15, 2026

Leave a message

The sensing system of a modern smart door is like a symphony orchestra:

Infrared sensor: Responsible for basic human body heat detection, with a reaction speed of 0.3 seconds.

 

Millimeter-wave radar: Detects minute movements through clothing, with a recognition distance of up to 5 meters.

 

AI vision module: Distinguishes between owners and visitors through posture analysis.

 

After fusing data from these three technologies, the false judgment rate can be reduced to below 0.02%.

 

Five innovative scenarios for contactless door opening:

Shopping return mode: When carrying items with both hands, a slight bend in the knee triggers the door to open.

 

Rainstorm emergency solution: Automatically expands the sensing range upon detecting raindrop speed.

 

Pet-friendly design: Adjusts the threshold based on the height of the collar chip.

 

Anti-tail random control: Determines the distance difference between multiple people through gait analysis.

 

Silent opening at night: Automatically reduces hinge noise after 10 PM.

 

Dynamic balance between safety and convenience: Latest technologies are breaking through traditional contradictions:

Electromagnetic locks can be manually opened in case of power failure.

 

3D structured light prevents photo/video hacking.

 

Local AI chip processes sensitive data without going to the cloud.

 

Door vibration monitoring automatically triggers backup power.

 

Abnormal opening and closing records generate mechanical analysis reports.

Send Inquiry