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Low-cost UV sanitization robot developed for COVID-19

Prabha is a remote-controlled robot used to systematically disinfect for COVID-19 using UV light. The room remains empty while the operator guides the robot via bluetooth.

Key Points

  • UV Sanitization Robot (Prabha): Amrita Vishwa Vidyapeetham’s HuT Labs developed a low-cost UV sanitization robot called Prabha. It disinfects rooms with UV rays and can be controlled remotely for safety. Prabha has three UV lamps and can sanitize rooms in 15 minutes to an hour.
  • Cross-Disciplinary Research: Over 60 researchers from various fields collaborated at Amrita Vishwa Vidyapeetham to develop solutions for COVID-19. Prabha is one of the innovations resulting from this effort.
  • Other inventions: HuT labs have invented five other robots to serve help people during the lockdown period

During India’s lockdowns across the country, Amrita Vishwa Vidyapeetham’s faculty are using the time to innovate new ways to help in the fight against COVID-19. More than 60 researchers from various fields at the university—including medicine, nanoscience, AI, big data, sensor-manufacturing and material sciences—are participating in a cross-disciplinary effort to design solutions for use around the world..

One of the inventions is Prabha, a remote-controlled sanitization robot that can systematically disinfect rooms with ultraviolet rays. Because exposure to UV light can damage eyes and skin, the user controls Prabha via bluetooth from a separate location. The first model contains three UV lamps and after its success, a larger model with six lamps was developed. Depending on the size of the room, the sanitization process can be done within 15 minutes to one hour.

Amrita’s Humanitarian Technology Labs (HuT Labs) is an engineering research lab using robotics to find solutions to social issues. HuT Labs collaborated with Megara Robotics, a private enterprise in Tamil Nadu, to develop Prabha, and the team completed its first successful prototype in June 2020.

With the goal of making Prabha affordable for as many institutions and people as possible, the selling price for the first model is $180 US.

The ultimate goal is to make Prabha as widely available as possible during this hour of need for the world, and as such, the selling price for the first model has been established at ₹13,500 ($180 US). The robot was developed in the context of medical institutions during the pandemic, but can be used in many locations where communicable diseases are a risk, including classrooms, office spaces, restrooms, living rooms and more.

Dr. Rajesh Kannan Megalingam heads Hut Labs and is with Amrita’s Department of Electronics and Communication, School of Engineering. He says all university departments are continuing to develop solutions to help society deal with the devastation of the coronavirus.

“The whole purpose of Amrita HuT Labs is to make robots for humanitarian ends. Robots that can assist sick people or that can do jobs that are unsafe for humans,” he said.

“For example, some of our early successes were with the creation of a low-cost self-driving wheelchair and a Cocobot that harvests coconuts from places so high that if a human climber were to fall, he would certainly be killed. So, as soon as we realized the seriousness of COVID-19, we began working on robots connected with the pandemic.”

Other inventions at Amrita’s HuT Labs include:

  • Maruti – a remotely controlled patient transportation robot that allows the operator or caretaker to move a wheelchair from a safe distance of one to four meters
  • Annapoorna – a robot used to remotely serve food and water and deliver medicines to patients in quarantine
  • Remote Bedside Monitor – an application that uses smartphones to decrease the number of visits required by medical support staff to isolation wards
  • Bodhi – a robot designed for police and security personnel during the lockdown that could patrol streets and broadcast messages

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