CONTENTSCONTENTS

•Introduction•Structure•Power source•NEXI robot•Designing of NEXI •Features•Adaptation to the surroundings

•Robotics is the science Robotics is the science and technology of and technology of robots, and there design, robots, and there design, manufacture and manufacture and applications.applications.•Robotics has Robotics has connections to connections to electronics, mechanicselectronics, mechanicsand software.and software.

•The structure of robot is usually The structure of robot is usually mechanical and can be called a kinematic mechanical and can be called a kinematic chain as its functionality is similar to chain as its functionality is similar to human beingshuman beings•More structures possible are a mimic of More structures possible are a mimic of various animals and insects. various animals and insects.

Spider

Owl

Scorpio

At present mostly lead-acid batteries are At present mostly lead-acid batteries are used, but the potential power sources used, but the potential power sources could becould be•Radioactive source.Radioactive source.•Compressed air canisters.Compressed air canisters.

A latest invention by MIT Media Lab A latest invention by MIT Media Lab is a new robot which is ableis a new robot which is able to show facial expressionto show facial expression such as “slanting its such as “slanting its eyebrows in anger ” eyebrows in anger ” or “raise them in surprise” or “raise them in surprise” and show a wideand show a wide assortment of facialassortment of facial expressions whileexpressions while communicating with people.communicating with people.

This latest achievement in roboticsThis latest achievement in robotics is named as NEXI as it is is named as NEXI as it is framed as the nextframed as the next generation robots generation robots which is aimed for awhich is aimed for arange of applications range of applications for personal robotsfor personal robots and human-robot and human-robot teamwork.teamwork.

•The head and face of NEXI were designed by The head and face of NEXI were designed by Xitome Design which is a innovative designingXitome Design which is a innovative designingand development company and development company that specializes in roboticthat specializes in roboticdesign and development.design and development.•The expressive robotics The expressive robotics started with a neck started with a neck mechanism sporting 4 degrees mechanism sporting 4 degrees of freedom (DOF) at the base, of freedom (DOF) at the base, plus pan-tilt-yaw of the head itself.plus pan-tilt-yaw of the head itself.

•The mechanism has been constructed to time The mechanism has been constructed to time the movements so they mimic human speed.the movements so they mimic human speed.•The face of NEXI has beenThe face of NEXI has beenspecially designed to use specially designed to use gaze, eyebrows, eyelids gaze, eyebrows, eyelids and an articulateand an articulatemandible which helps mandible which helps in expressing a wide in expressing a wide range of different emotions.range of different emotions.•The chassis of NEXI is also advanced. It has The chassis of NEXI is also advanced. It has been developed by the Laboratory for been developed by the Laboratory for Perceptual Robotics UMASS (University of Perceptual Robotics UMASS (University of Massachusetts), Amherst.Massachusetts), Amherst.

•This chassis is based on the uBot5 mobile This chassis is based on the uBot5 mobile manipulator. manipulator. •The mobile base can balanceThe mobile base can balancedynamically on two wheels. dynamically on two wheels. •The arms of NEXI can The arms of NEXI can pick up a weight of pick up a weight of up to 10 pounds andup to 10 pounds andthe plastic covering ofthe plastic covering of the chassis can detect anythe chassis can detect any kind of human touch.kind of human touch.

Except a wide range of facial expressions, Except a wide range of facial expressions, NEXI has many other features.NEXI has many other features.•It has hands which canIt has hands which canbe used to manipulate objects, be used to manipulate objects, eyes (video cameras), eyes (video cameras), ears (microphones), ears (microphones), and a 3-D infrared cameraand a 3-D infrared cameraand laser rangefinder which and laser rangefinder which support real-time tracking support real-time tracking of objects, people and voices of objects, people and voices as well as indoor navigation.as well as indoor navigation.

•NEXI can also observe the size and weight of NEXI can also observe the size and weight of any object that is placed in its hand.any object that is placed in its hand.•NEXI can also sense whenNEXI can also sense whena human is touching it, a human is touching it, thanks to springs in its thanks to springs in its arms, hands and neck arms, hands and neck that can sense force that can sense force and response to it.and response to it.•If too much force is If too much force is applied, the robot will applied, the robot will voice its displeasure by saying..... "ouch!" voice its displeasure by saying..... "ouch!"

MIT Humanoid Robotics Group have developed a feature MIT Humanoid Robotics Group have developed a feature in NEXI robot which is capable of adapting to situations in NEXI robot which is capable of adapting to situations so that it can assist people with everyday chores, so that it can assist people with everyday chores, everyday life and everyday work.everyday life and everyday work.•Engineers have placed Engineers have placed cameras inside robot's eyes cameras inside robot's eyes which enables it to see and which enables it to see and adapt to his surroundings .adapt to his surroundings .•When NEXI spots a motion When NEXI spots a motion that looks like a face, that looks like a face, it locks its gaze onto it. it locks its gaze onto it. Once NEXI’s gaze is captured, Once NEXI’s gaze is captured, the human can issue verbal the human can issue verbal commands .commands .

REFERENCES:-REFERENCES:-WIKIANSWER.COM

OUTSPOKENSCIENCE.COM

NEXI-KNOWLEDGEOMAN.COM

WWW.ROBOTICS.CS.UMASS.EDU

http://robotic.media.mit.edu

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