| Popis: |
This paper designs and makes a non-contact smart hand sanitizer auxiliary device for public places using the controller Arduino. This device senses the human body's hand through infrared, and the sensing distance is 2 cm. Once hand is detected, the device will automatically turn on the relay and pump out a fixed weight of hand sanitizer. The device can detect the weight of the remaining hand sanitizer through the pressure sensor and upload the collected data to the cloud platform. After receiving the information, the service persons of public places can replenish the hand sanitizer in time as needed. The design has strong real-time performance, stable system, low cost, easy upgrade and improvement and has certain application value. |
