A minimal above a ten years back, scientists at the University of Tehran introduced a rudimentary humanoid robot identified as Surena. An enhanced design capable of going for walks, Surena II, was introduced not lengthy immediately after, followed by the more able Surena III in 2015.
Now the Iranian roboticists have unveiled Surena IV. The new robotic is a significant advancement in excess of former models. A video clip highlighting its capabilities displays the robot mimicking a person’s pose, grasping a water bottle, and composing its name on a whiteboard.
Surena is also proven getting a team selfie with its human friends.
Who made Surena?
A staff of a lot more than 50 scientists constructed Surena IV at the University of Tehran’s Center for Sophisticated Devices and Systems (Cast). Led by Dr. Aghil Yousefi-Koma, a professor of mechanical engineering, the group labored for the past 4 several years to produce the new robot.
“Improving the robot’s interaction with the ecosystem was a person of the key aims of the Surena IV job,” Professor Yusefi-Koma tells News Supply. He clarifies that the robotic can now keep track of objects much more precisely, and new fingers give it far better dexterity. These enhancements allow for it to manipulate a extensive selection of objects, such as fragile kinds, as very well as function power resources.
Surena IV is also far more nimble. Custom pressure sensors on the bottom of its feet enable the robotic phase in excess of uneven surfaces by adjusting the angle and placement of each individual foot. Going for walks velocity improved to .7 kilometers for every hour from .3 km/h in the past generation.
Even though Surena IV is not a really dynamic machine like Atlas, the famously agile humanoid from Boston Dynamics, it relies on a whole-entire body motion controller that consistently adjusts its posture to keep away from falls. In its total style, Surena is likely extra similar to humanoids like UBTECH’s Walker, Honda’s Asimo, Pal Robotics’ Talos, KAIST’s Hubo, and AIST’s HRP-2, despite the fact that these robots have now publicly shown a broader range of capabilities.
Picture: University of Tehran/Solid
Surena IV is outfitted with new hands that allow for it to grasp a broader variety of objects.
To make his robots far more broadly acknowledged, Professor Yusefi-Koma has sought to just take them to international conferences and trade shows, and his group has released papers on humanoid robotic style and design, bipedal locomotion, and other subjects. He has said that his team needs to “make [Surena] very competitive and might be taking part in an worldwide challenge as properly as obtaining true purposes and users.”
In footage produced as element of Surena IV’s unveiling, which transpired late last year, the humanoid is proven lifting a box, inside of which is Surena Mini, a knee-large robot that the Cast crew formulated in 2017.
A further video clip provides a at the rear of-the-scenes glimpse at Surena’s enhancement, exhibiting the researchers screening new components, creating code, and assisting the robot as it requires its 1st steps.
The evolution of Surena
The most recent Surena product has come a extended way since the original version, which experienced only 8 degrees of freedom (DoF) and made use of wheels on its feet to go all over. Surena II experienced 22 DoF and was the to start with edition able of going for walks. Surena III, with 31 DoF, shown skills like climbing steps and kicking a ball.
Surena IV has even far more axes of movement, with additional 12 DoF, most on the fingers, for a whole of 43 DoF. The Cast staff redesigned many parts, producing new light-weight structural features and small but potent tailor made actuators. As a outcome, the new robot—at 1.7 meters tall and 68 kilograms—is lighter and a lot more compact than Surena III (1.9 m and 98 kg).
Image: University of Tehran/Solid
Led by Dr. Aghil Yousefi-Koma [standing to the left of the robot], a staff of much more than 50 researchers produced Surena IV at the College of Tehran’s Heart for State-of-the-art Methods and Technologies (Forged). For the duration of an event late past yr, part of the team posed with Surena for a photograph.
One more advance is the robot’s controller. The handle loop now operates at a higher frequency (200 Hz), thanks to newly included FPGA boards. Sensors incorporate stereo cameras, 6-axis power/torque sensors in the ankles, encoders on all joints, and an inertial measurement unit (IMU). A text-to-speech method permits the robot to recognize and make fundamental speech.
To make all the sensors, controllers, and actuators function alongside one another, the researchers equipped Surena with the Robotic Operating System, or ROS. They also used Gazebo, Choreonoid, and MATLAB to simulate the robot’s motions and evaluate distinctive behaviors, like strolling backwards and sideways, turning close to, and force restoration.
But the upgrades are not just inner. Surena IV’s exterior attributes new plastic addresses that make the robot look sleek—and only a bit menacing. Professor Yusefi-Koma has emphasised that he sights Surena as a “symbol of engineering progression in the route of peace and humanity,” hoping it will support encourage persons about the alternatives of robotics.