Kerala students develop low-cost self-driving wheelchair with Robotic OS
Coimbatore, July 4: Student researchers from the Amrita Vishwa Vidyapeetham here, have developed a low-cost self-driving wheelchair that works on Robotic Operating System (ROS) and can be navigated using a smartphone app.
Named "Self-E", the revolutionary wheelchair uses ROS to create a map of the surrounding space, along with static and dynamic obstacles, using a laser sensor and displays it through a smartphone app.
The user can then touch any point on the generated map and the wheelchair will drive to that place automatically without user intervention.
"The unique Self-E self-driving wheelchair now needs to be tested in different environments like hospitals and airports with patients and wheelchair users. We hope to commercialize the product," said Rajesh Kannan Megalingam, Assistant Professor at the varsity.
Self-E works by mapping the surrounding environment, including dynamic and static obstacles such as people, walls, pillars, tables, chairs, etc. using a laser sensor called LiDAR.
The map is automatically loaded onto an Android smartphone or tablet through a specially developed app.
Self-E's autonomous operation allows users to relax and sip a cup of coffee, read a newspaper or chat with friends as the wheelchair takes them to the desired destination point on its own.
"Users can have complete control over the wheelchair without anyone's help. On the other hand, if some patients have a problem in using a smartphone, a friend or family member or assistant can use the Android app to transport them without the need to physically push the wheelchair." said Chinta Ravi Teja, a student at the varsity.
Teja, along with Sarath Sreekanth and Akhil Raj have developed the Self-E wheelchair.
Let the Truth be known. If you read VB and like VB, please be a VB Supporter and Help us deliver the Truth to one and all.
Karnataka to witness heavy rain for next 10 days
Bengaluru: The India Meteorological Department (IMD) has forecast that the southwest monsoon will cause heavy rainfall likely this weekend and will drench Karnataka over the next 10 days.
The monsoon has begun retreating from northwestern India. Conditions remain active over the south, with an upper air trough extending up to 1.5 km over North Interior Karnataka and northern Tamil Nadu, combined with weakening monsoon winds across the peninsula, is driving the current spell. N. Puviarasan, head of the IMD’s meteorological centre in Bengaluru, said in a conversation with Deccan Herald, “As a result, the whole of Karnataka will see rain over the next week to 10 days."
With a cyclone in the Pacific Ocean along with a low-pressure system over the north Bay of Bengal, the monsoon is expected to intensify during the next four days. IMD has predicted heavy rains across South Interior Karnataka, including Bengaluru, throughout the weekend.
Bengaluru, recorded widespread moderate to heavy rainfall on Thursday. Between 8.30 am and 8.30 pm, Bengaluru city logged 45.9 mm of rain accompanied by thunderstorms. HAL airport registered 6 mm and the Bengaluru Urban automatic station recorded 47.5 mm. Doddathoguru, near Electronics City, reported 55 mm.
According to IMD forecast heavy rainfall will occur at isolated places in Bengaluru Urban, Bengaluru Rural, Yadgir, Koppal, Raichur, Ramanagara and Mandya districts in the next few days.
The southwest monsoon is now expected to extend until mid-October and with little or no break in between, the northeast monsoon is likely to follow immediately. These are expected to last until December. “There may be no break in between,” Puviarasan said.
