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 5:09 PM

Beirut Port Blast: What lies ahead for Lebanon?

The year 2020 will be remembered as the year of disasters in the history of humankind. A devastating tragedy struck Beirut, the capital of Lebanon on August 4, 2020, in the form of a massive explosion which occurred in the port area and ripped a large part of the town .

As per initial estimate the death toll stands at 157 with more than 5000 people severely bruised and thousands displaced from their homes. The incredible force of the blast could be felt as far as Cyprus, which is at a distance of 250 kms from the explosion site.

A giant red cloud of smoke erupted in the clear skies followed by a deafening ‘bang’ and smashing of windows. "First we heard one sound. Seconds later there was a big explosion. All hell broke loose and I saw people thrown five or six metres" said Ibrahim Zoobi, who worked near the port. Satellite images show that warehouses and buildings within a radius of 2km from the site of the blast were completely destroyed, ending up in debris.

The intensity of the blast was equivalent to almost ‘2.2 kilotons of TNT’, according to an analyst and weapons expert. The aftermath included scenes of jam-packed hospitals, running without proper electricity connection, increased demand of blood donations and generators and agonized cries of people searching for their loved ones amongst the rubble filled roads.

Michel Aoun, the President of Lebanon | Source: Wikimedia

American President Donald Trump was quick to tweet about calling the blast a ‘terrible attack’. However, according to Michel Aoun, the President of Lebanon, the actual culprit of the blast was the 2,750 tonnes of fertilizer, ammonium nitrate, stored in one of the warehouses in the port area which caught fire. This explosive material was reportedly confiscated from a Russian cargo ship, back in 2014, when it made an uninformed stop at the Lebanese port.

Ammonium nitrate is a white substance used as a fertilizer as well as an explosive. It cannot explode on coming in contact with air but can detonate immediately as it encounters a flammable substance like oil or fire. Being an oxidiser, it will accelerate the severity of the explosion and also lead to release of toxic gases like nitrogen dioxide.

Boaz Hayoun, one of the top bomb experts of Israel, states “Before the big explosion, in the center of the fire, you can see sparks, you can hear sounds like popcorn and you can hear whistles”, which is a strong indication of fireworks. This might point towards seemingly inadequate warehouse management issues in Beirut, as such substances might have come across the explosive nitrates and instigated the blast. The safety protocols were simply not followed, despite being aware about the presence of a ‘ticking time bomb’ in the warehouse.

As Beirut is fighting the COVID-19 pandemic and a financial crisis, it was definitely not ready for another blow. Beirut’s grain storage tower, the largest in Lebanon, was also engulfed in the flames, hampering the entire country’s food security. "It's an economic crisis, a financial crisis, a political crisis, a health crisis, and now this horrible explosion” says Tamara Alrifai, spokesperson for the UN Relief and Works Agency for Palestine Refugees in the Near East (UNRWA).

France, the US, Italy, Turkey, Iran, EU, and OIC came up with the offer of help and show support for the people of Beirut.  Emmanuel Macron, the President of France, was the first foreign leader to visit the crisis-hit Beirut. While he consoled the citizens, their grief turned into anger as they chanted the word ‘Revolution’.

There is great anger among the citizens against the government, whom they accuse of being corrupt, sectarian, unaccountable, and out of touch with the common people. The intense protest by the people on the street forced the Prime Minister Hassan Diab to resign along with his cabinet on August 10, 2020.

The economic cost of the Beirut blast, where over 300,000 people have become homeless after their homes get destroyed, is estimated to be $15 Billion. Lebanon, which was already on the verge of economic collapse before this disaster struck, may find it impossible to withstand such a blow to the economy. It will need the support from the world over to rebuild Beirut.

A donor conference for rebuilding Beirut received a total pledge of about $300 million. Though it is a minuscule figure as compared to the destruction in Beirut, it will help to tide over the immediate humanitarian crisis. Apart from this Turkey has offered to help rebuild the port of Beirut and many countries are sending relief supplies.

The days ahead for the citizens of Beirut are going to be challenging as the country navigates the sectarian divide during the formation of a new government. It will be keenly watched by the citizens as well as the international community, whether Lebanon will discard its entrenched ruling elite and reject the toxic sectarian divide to elect an inclusive government or continue to perpetuate the misery on the common citizens.

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