How Do You Make An Automatic Door Opening With A Motion Sensor - China

An Automatic Door Opener System is a simple project based on PIR Sensor and CloudX microcontroller, which automatically opens and closes the door by detecting a person or object.

You must have seen automatic door openers in shopping malls and other commercial buildings.

They open the door when someone comes near the entrance and close it after sometime.

A number of technologies are available to make such kinds of systems like PIR sensors, Radar sensors, Laser sensors, Infrared sensors, etc.

In this project we will be using a PIR sensor.

In the Automatic Door Opening System, the main component or hardware is the sensor which detects the persons (well, the motion of the person in our case).

PIR sensor detects any change in heat, and whenever it detects any change, its output PIN becomes HIGH.

They are also referred as Pyroelectric or IR motion sensors.

Here we should note that every object emits some amount of infrared when heated.

Human also emits infrared because of body heat.

PIR sensors can detect small amount of variation in infrared.

Whenever an object passes through the sensor range, it produces infrared because of the friction between air and object, and get caught by PIR.

The main component of PIR sensor is Pyroelectric sensor shown in figure (rectangular crystal behind the plastic cap).

Along with BISS0001 ("Micro Power PIR Motion Detector IC"), some resistors, capacitors and other components used to build PIR sensor.

BISS0001 IC take the input from sensor and does processing to make the output pin HIGH or LOW accordingly.

Pyroelectric sensor divide in two halves, when there is no motion, both halves remain in same state, means both senses the same level of infrared.

As soon as somebody enters in first half, the infrared level of one half becomes greater than other, and this causes PIRs to react and makes the output pin high.

Pyroelectric sensor is covered by a plastic cap, which has array of many Fresnel Lens inside.

These lenses are curved in such a manner so that sensor can cover a wide range.

Motor Driver is an important part of the project as it is responsible for driving the motor of the door (CD Tray Motor in this case).

In this project, we have used the very common and very popular L298N Motor Driver Module.

Our system puts forward an automatic and precise door opening system based on human movement sensing near the door.

Well opening a door in places like hotels, Shopping complexes, and offices can be a tedious task and sometimes requires hiring a person just for the sake of opening door whenever a person arrives.

Well this project proposes a system that allows for automatic door opening solution by sensing human presence near it.

Our system achieves this functionality with the help of PIR sensors.

PIR stands for passive infrared sensors.

Every live body emits some infrared energy.

This energy is sensed by a PIR sensor from a good distance.

This signal is then processed and door is opened and closed based on this data.

When a living being arrives within the sensor range, it detects its presence and sends out a command that opens the door.

The door then automatically closes after a specific time delay if there is no further motion near the door.

The system can be later enhanced by integrating counter mechanism so as to keep track of the number of persons inside the facility.

More infomation: u-sensors.

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Company Contact:

• Posted By: QINUO Electronics Co., Ltd

• Phone: 15659820978

• Address: wansheng street luojiang, Quanzhou , fujian , China

• Email:

• Website: https://www.u-sensors.com/

• Business Description: QINUO Electronics Co., Ltd is a leading automatic doors systems manufacturer in China, offer a diverse range of automatic door sensor, RF remote control, gate control board, transmitter&receiver, etc.
  
  With 10-year effort, we have expanded our market to Europe, North America, Southeast Asia and Middle East and enjoy good reputation among our customers.