Exoskeleton ppt

EXOSKELETON

BYJ PRAVEEN

MOVIES EDGE OF

ROBOCOPTOMORROW

ELYSIUM

IRONMAN

MEANING Exoskeleton

derived from Greek ἔξω, éxō "outer" and σκελετός, skeletos "skeleton“.

External skeleton that supports and protects an animal's body.

INSECTS (GRASSHOPPER)

CRUSTACEANS (LOBSTER)

HISTORY Armor – Tool used

for defense Knight in shining

armor – “An idealized or chivalrous man who comes to the rescue of a woman in a difficult situation.”

1960 – MAN AMPLIFIERS

PEDIPULATOR

HOW DOES IT WORK?Hydraulic Pump-Valves Sensorsactuators

Of course there is coding for motorint i = 0;void loop(){targetAngle = nextAngle[i]; //nextAngle is

an array of points so nextAngle[0] through nextAngle[1] represents one section of the graph.

i++if (getDegrees(1)< targetAngle){double deg = getDegrees(1);while (deg<targetAngle){/***Execute drive code**/deg = getDegrees(1);}else{double deg = getDegrees(1);while (deg>targetAngle){/***Execute drive code**/deg = getDegrees(1);}}}

void function nextStep(int var1, int var2) { //Read sensors and put into variables until(condition == true) { //Condition to

see if the motors are at the right degree

//Adjust motors not in the right place delayAndCheckBT(10); //Look at the

bottom for this function }}

void checkBT() { //Checks BT. Make sure this is non

blocking: if you need to, set a few global variables

//Note this code will get called a LOT, so don't implement any delays or loops: inside here: use millis().

}void delayAndCheckBT(int timeToWait) { unsigned long finishTime = millis() +

timeToWait; while (millis()<finishTime) { checkBT(); }}

Neuromuscular Signal The term for the

connection between the nervous system and the muscle.

Electromyography (EMG) is an electrodiagnostic medicine technique for evaluating and recording the electrical activity produced by skeletal muscles.

TYPES OF EXOSKELETON PASSIVE

EXOSKELETONS

POWERED EXOSKELETONS

HAPTIC EXOSKELETONS

PASSIVE EXOSKELETONS Does not require

power supply Requires human

effort Harnesses

bodypower and save energy

Helps us in posture

Light and easy to use

POWERED EXOSKELETONS Requires power

supply Does not require

human effort Big and heavy Helps to do jobs

which are not humanly possible

HAPTIC EXOSKELETONS Used in

graphics

Used to capture motions accurately

Used in virtual reality

CHALLENGES FACED Power supply Skeleton Actuators Joint flexibility Power control and modulation Power control and modulation Pinching and joint fouling Adaptation to user size variations

EXOSKELETONS IN USEXOS

By SARCOS Developed for US Military Weighs about 95kg Wearer can lift about 200lb of weight

for long periods of time without feeling the strain

Allows punching through three inches of wood

Lift 50lb with each arm

XOS IN ACTION

Human Universal Load Carrier(HULC)

 Originally developed by Berkeley Bionics in 2008   Lockheed Martin acquired the design licence from

Berkeley in 2009 Enables soldiers to carry loads up to 200lb (91kg) Weighs 53lb (24kg) without batteries. The design is

adjustable to suit users with a height of 5'4" to 6'2“ Controlled by a micro-computer that sense the

user's requirement and adapt to the situation accordingly

Fuel cell power supply system support for 72 hours

Move at maximum speed of 11kmph long duration and at 16kmph burst speed

HULC IN ACTION

ANKLE EXOSKELETON Used to walk

easier and relaxing

Conserves 7% of energy

Lightweight Energy-

efficient Inexpensive

REWALK Helps physically

challenged and elderly people

Posture and Balance

Inexpensive Decreased Pain Reduced Fatigue Costs $150,000

(Rs.90,00,000)

SPRINGTAIL EXOSKELETON FLYING VEHICLE Developed by Trek

Aerospace Has a built in jet

pack Capable of flying up

to 70 miles per hour (112.6 kilometers per hour)

Hovers motionlessly thousands of feet above the ground

USES

LABOURERS

PHYSICALLY CHALLENGED

MILITARY

FIREFIGHTERS

THANK YOU

Hence exoskeletons is a milestone and it is helping mankind to leap forward into the future…

A WORLD OF AUTOMATION AND ROBOTICS.