Laser Based Non-Contact Type Distance and Height Measurement System Using ESP32

EasyChair Preprint 10471

Abstract

This paper presents the design and implementation of non-contact type distance and height measurement system using ESP32. There are many methods developed to measure distance and height starting from conventional measuring tape to sophisticated sensing system. In this paper a low-cost distance and height measurement system is proposed using the basic trigonometry principle. i.e., Pythagoras theorem. Two laser sources are used to estimate the height and distance of the system. The angle of rotation of the laser source to meet the reference laser source at the object surface is captured using potentiometer. ESP32 takes the angle information and estimates the distance/width/height. This technology provides a customizable and easily integrated solution for application such as construction, agriculture, and surveying. Maximum error occurred in the system is 15cm/10meter, which is comparable with other product with relatively higher cost. For future improvement incorporating wireless communication for remote monitoring and data collection using additional sensor to increase measurement accuracy. The non-contact measurement system is a promising technology with a wide range of application. The system is designed at very low cost, wireless capabilities and non-destructive measurement make it highly versatile and valuable for industrial applications.

Keyphrases: ESP32 Micro-controller, Laser light, Potentiometer, low power, micro python

@booklet{EasyChair:10471,
  author    = {Anjani Kumari and Sanjaya Shankar Tripathy},
  title     = {Laser Based Non-Contact Type Distance and Height Measurement System Using ESP32},
  howpublished = {EasyChair Preprint 10471},
  year      = {EasyChair, 2023}}