Saturday, August 1, 2020

Student creates a robotic guide dog for visually impaired

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Charvi Trivedi

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Student creates a robotic guide dog for visually impaired

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Global Views 360

Publication Date

August 1, 2020

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The prototype of handheld robotic guide dog

The prototype of handheld robotic guide dog | Source: Anthony Camu via Loughborough University

Anthony Camu, a final year Industrial Design and Technology student at Loughborough University is making headlines with his latest creation of a handheld robotic guide dog. This will be a great help to those people with visual impairment who might find it difficult to accommodate an actual guide dog in their homes.

The robot is named after the Titan goddess of light, ‘Theia’ and is shaped like a virtual gaming controller, which enthused Anthony to create this masterpiece in the first place. Theia listens to the user’s voice to lead them to their desired locations.

If the user has to go to some address (for eg. House number 4, 56th Street, Greenville Residency), they have to say ‘Hey Theia take me to House number 4, 56th Street, Greenville Residency*’. It will then process the actual data available online, like traffic density, and program the most secure route for the user to follow, quite similar to how GPS or satellite navigation works in our cars.

All the information is then communicated to the user via a machine built inside it, called a control moment gyroscope which uses the mechanism of ‘forced feedback’. These are used in spacecraft and their main function is to help in orientation purposes of the spacecraft, or in controlling the ‘spacecraft attitude’ using electric power.

This tiny built-in gyroscope physically moves the user’s hand in the direction they are supposed to go, thus giving them a feeling of being led by an actual guide dog. “The main intention was never to replace guide dogs, but instead to provide an alternative means of giving enhanced mobility options to visually impaired people” says Anthony Camu.

According to Mr. Camu, Theia will also be helpful in confronting challenging interactions like elevators or shops. While crossing a busy street, it will tend to ‘push back’ the users, cautioning them to be more sentient about their current surroundings. Moreover, Theia is quite pocket-friendly, costing about one-tenth the price of a real guide dog.

This tool will also contribute in imparting a sense of belonging and reduce the constant mental hassle and anxiety faced by the visually impaired population of the world. Since they are unable to assess their surroundings, it limits their outdoor movement. This will help them move in the outdoors more often and reduce stress while navigating the traffic on the road.

Anthony has created and experimented with many prototypes of Theia and some work is still needed to correct a few issues before the final launch his product in the market

However, he concluded that Theia has a promising future and it requires just a little more testing and research.“I know this is a grand vision, but I hope people can see the positive effects Theia could have on the blind community” he states.

*This address is fictional. Any similarity is purely coincidental.

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February 4, 2021 4:51 PM

How Dharavi, Asia’s biggest slum, fought against COVID-19

Imagine a place where 8-10 people live in 100 square feet structures. A place which squeezes close to 6,50,000 people, 5,000 small factories, and about 15,000 single-room workshops in just 2.5 square kilometer area. Welcome to  Dharavi, the biggest slum of Asia situated in the heart of fashion, entertainment, and commercial capital of India, Mumbai.

When the first COVID-19 case was discovered in Dharavi, it caused massive panic among the citizens as well as officials. Social distancing is virtually impossible to achieve in Dharavi, which is a maze of narrow congested lanes with tenements on either side of it and where 80% of the population use community toilets.

With their fingers crossed, people were speculating about Dharavi turning into a graveyard. These fears turned out to be misplaced and three months later Dharavi won praise from the WHO for effectively restricting the spread of coronavirus. According to the official data, the COVID-19 case doubling rate improved greatly, from 18 days in April, to 43 days in May, to 108 days in June, and 480 days in July.

Mr. Kiran Dighavkar, Assistant Commissioner of the top civic body of Mumbai, Brihanmumbai Municipal Corporation (BMC) said that their undertaking of an aggressive strategy of 4T’s - Tracing, Tracking, Testing & Treating, is the key to Dharavi’s successful fightback against the pandemic. The fightback plan was aptly coined "Mission Dharavi".

Extensive screening and testing of residents was done to detect the symptoms for coronavirus in "fever camp" which were set up by medical workers in different parts of the slum everyday. Many buildings such as schools, wedding halls, and sports complexes were overtaken by the civic authorities and were repurposed as quarantine facilities. A 200-bed hospital was also set up in record 14 days.

The BMC commissioner, I S Chahal said “Proactive screening helped in early detection, timely treatment and recovery.” Close to six hundred thousand people were screened, 14,000 people tested and 13,000 quarantined in nearby institutions, schools, marriage halls, and sports complexes. Furthermore, continuous monitoring of people’s movement using drones helped reinforce containment measures and scaled progress swiftly.

To further strengthen the measure, locals of the community emerged as “COVID Yodhas” (warriors) to address the concerns, a senior official said.  Many well endowed citizens and NGO’s provided Free meals, ration, PPE gear, oxygen cylinders, gloves, masks, medicines, and ventilators to residents and doctors.th July

On 8th July 2020 Dharavi recorded a total of 2,335 COVID-19 out of which 1,735 patients have recovered and there are only 352 active cases at present. Only 82 deaths were recorded in Dharavi till 8th July as against more than 4500 in the whole of Mumbai.

This phenomenal success has given the world a yet simple and effective technique in curbing the spread of the deadly virus. World Health Organization (WHO) chief Tedros Adhanom Ghebreyesus, in a virtual press conference in Geneva, acknowledging the efforts of various nations and Dharavi to contain the virus, said that “There are many examples from around the world that have shown that even if the outbreak is very intense, it can still be brought back under control”. Further, he added, “And some of these examples are Italy, Spain, and South Korea, and even in Dharavi -- a densely packed area in the megacity of Mumbai -- a strong focus on community engagement and the basics of testing, tracing, isolating and treating all those that are sick is key to breaking the chains of transmission and suppressing the virus.”

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