Mobile Sentry Robot for Laboratory Safety Inspection Based on Machine Vision and Infrared Thermal Imaging Detection

Dong Zhang,Zhongyi Guo,Vincenzo Conti

doi:10.1155/2021/6612438

Abstract

As is known to all, university chemistry laboratories have always been considered as dangerous areas on campus, especially pharmaceutical chemistry laboratories, which are often the focus of pharmaceutical laboratory management. The innovation in safety management mode can effectively reduce or even eliminate security risks and reduce the risk of safety accidents. With the rapid development of artificial intelligence, robots have been introduced into all walks of life, replacing humans to complete part of the safety inspection. One of the core tasks of laboratory safety inspection is to find the source of fire and take measures to extinguish the fire in time. The intention of this paper is to design a sentry robot, which could take appropriate emergency measures to detect dangerous situations, including sounding alarms and carrying out firefighting, in order to minimize accidents and economic losses, based on machine vision for periodic inspection of laboratories with a temperature thermal imager to scan surroundings at the same time. The preliminary research results show that based on the machine vision, the robot identified the fire source and adjusted the spray device to carry out the fire-extinguishing experiment successfully. The development and utilization of laboratory patrol robots can share the work of laboratory patrol to a certain extent, guarantee the safety of experimental teaching in colleges and universities, and have room for sustainable research.

Highlights

In recent years, the education system has introduced the concept of safety development, carried forward the idea of life first and safety first, and achieved positive results in the safety work of university laboratories, and the overall security situation remained stable
In this paper, a physical flame recognition experiment was conducted on the patrol robot, the flame recognition distance was obtained, and the influence of the distance on the recognition temperature was analyzed. e robot was about 7 meters away from the flame, and the actual flame area was about 0.16 square meters at most and 0.0225 square meters at least
The thermal imager camera was 66 centimeters above the ground, with a visual angle range of about 24°. erefore, the ground within 1.5 meters from the patrol robot could be observed. It can be seen from the results that the infrared thermal imaging flame recognition system of the robot had a wide field of vision, a wide range of recognition, and high accuracy for remote flame recognition and can identify flames with a small area, achieving the purpose of patrol robot design

Summary

Introduction

The education system has introduced the concept of safety development, carried forward the idea of life first and safety first, and achieved positive results in the safety work of university laboratories, and the overall security situation remained stable. With the rapid development of laboratory construction in universities and scientific research institutes [1], safety accidents occurred frequently in some university laboratories, and most of them were in the form of fire [2]. In June 2013, a fire broke out in the basement of Peking University and some laboratories were damaged. In February 2015, a fire broke out in a laboratory at Nanjing University of Science and Technology. In December 2015, a fire at Tsinghua University killed a postdoctoral fellow.

Results

Discussion

Conclusion