[Skin] by Gella

[skin] 🍏 //

Angelina Kozhevnikova Hamze Machmouchi Razvan Voda Xiaonan Liu

Workshop 02 _ Sensory Environments

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a new type of media for the post-human

In a world where humans and machines are no longer separated entities, a new type of media has to emerge and symbiotically merge the two.

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Content

Section A: Concept 7 1. diagrams 2. sketches

Section B: Studies 14 1. sensors 2.methods of actuation 3.patterns

Section C: Prototypes 29 1. poncho 2. vest

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Concept [skin] is a wearable device that extends communication abilities beyond language. It extends the skin's sensory faculties in order to exchange through touch. Using a soft actuation system and computer recognition, the devices are able to exchange physical media between them based on their location and intents.

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~@#%&* +{}“/=-……

STEP 1: State Setting

[ Owner to Costume ]

STEP 1: State Setting

[ Owner to Costume ]

State A: Willing to Talk

State B: Unwilling to Talk

State A: Willing to Talk

State B: Unwilling to Talk

STEP 2: Face-to-Face Interacting ~@#%&* +{}“/=-……

[ Owner to Costume ]

Range 1 Searching

Range 2 Pairing

Range 3 Communicating

Touch Playing

Scenario A: Willing to Talk

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~@#%&* +{}“/=-……

Range 1 Sensing Red Lights Blinking

Range 2 Locating

Range 3 Warning

Touch Rejecting

Scenario B: Unilling to Talk

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STEP 3: Long-Distance Interacting

[ Costume to Costume ]

*&%#@~ ……-=/“}{+ ~@#%&* +{}“/=-……

Connecting

Physical “Chatting”

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Sketches

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we made a series of sketches studying the different possibilites and outcomes of the wearable device based on aesthetics and methods we were interested in experimenting with

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Studies

The extension is inside-out, derived and emerged from the biological properties of the human body. The extension is consequentially an extrusion.

Learning from microscopic typologies

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Sensors

Distance sensor (ultrasonic)

Touch sensor (fabric)

Touch sensor (electrical paint)

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Methods of actuation

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Inflatables

Electromagnets

Silicon. Soft actuation

Magnetic actuation

Nitinol

Tensegrity

Shape memory wires. Material actuation

Pop-up effect. Mechanical actuation

Patterns - Inflatable layer

Exploring different geometry and size of air pockets, air input points and thickness of connecting tubes.

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Patterns - Inner pattern

Exploring different types of pattens and their tactile characteristics

Color study

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Patterns - Inner pattern

The extension is inside-out, derived and emerged from the biological properties of the human body. The extension is consequentially an extrusion. The inner pattern is connecting the senseless machine with the senseful human body.

defining sensitive areas

least sensitive

most sensitive

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Exploring micro patterns

Studying different types of patterns and textures, we came up with a synthesized synesthetic inner layer that will cause new senses for the human skin.

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Patterns - Outside layer

- Clear pattern, good for recognition - Has difference between deflated and inglated state

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- Bad for patter recognition because pattern merges with background - Has difference between deflated and inglated state

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External pattern recognition

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The outer pattern complements the communication between human, communication that is facilitated through a middle layer which is the machine and computer vision.

Pattern recognition using OpenCv on C++

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External pattern recognition

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Pattern recognition using OpenCv on C++

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iteration01, poncho

Prototypes We have developed two iterations studying the assembly, fit, and experience of the wearable. The first one, a poncho, didn't incorporate any computer vison capabilities and was solely made to test assembly and inflation patterns. The wearables were cast into platinum cure silicone using digitaly fabricated molds.

puncho mold

base

inflation patterns

result

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mold

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fit

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iteration02, vest

Researching different microscopical details of biological frameworks, we were able to exponentially scale the found geometries and the relationship within in order to produce patterns that will not only be derived from the human, but will also tend to reinvent the human.

Outside Layer

Inflation Layer

Inside Layer

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tailoring

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inner pattern, cnc mold

Action: 1. Bending 2. Shrinking 3. Folding

Method: Density

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inflation layer, cnc mold

Action: 1. Expanding 2. Shrinking

Method: Pockets

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The costume was designed in order to accommodate and relate to the most sensitive areas of the human body. Sketches were made to find a form that will maximize the relationship between the machine and the human and to enhance the interaction between humans through a new type of conversation.

Action: 1. Expanding 2. Shrinking

Method: Extrusions

outside layer

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System of the prototype - vest

Core LED light Touch sensor

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Distance sensor

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Core

Air pump air out - front

Air pump air in - front Battery for arduino Battery for air pump

Mosfet

Battery for air pump

Mosfet

Mosfet Air pump air in - back

Button Arduino nano

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Air pump air out - back

Battery for air pump

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Coding

1 RANGE - APPROACHING (1,5 m) When costume senses someone approaching (in costume we mimic it with button because ultrasonic is very innacurate for this distance) it starts long air pulsation. Led light turns in rythm of "air in" or inflating interval.

2 RANGE - CLOSE (0,4 m) When costume senses someone close with ultrasonic sensor, the air pulsation becomes faster. Led light turns in rythm of "air in" or inflating interval.

3 RANGE - TOUCH When costume senses someone close with ultrasonic sensor and touching with touch sensor, the air pulsation becomes extremely fast. Led light turns in rythm of "air in" or inflating interval.

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// libraries #include <CapacitiveSensor.h> //BUTTON int ButPin = 2;

if (Buttonstate == HIGH) Buttonstate = LOW; else Buttonstate = HIGH;

// the number of the input pin

int Buttonstate = LOW; // the current state of the output pin int reading; // the current reading from the input pin int previous = LOW; // the previous reading from the input pin long time = 0; // the last time the output pin was toggled long debounce = 200; // the debounce time, increase if the output flickers

}

time = millis(); } previous = reading;

void button(){

airOutF = LOW;} else { interval1 = ms; interval1 = OFFtimeF4; airInF = LOW; airOutF = HIGH;}

} digitalWrite(APfrontIN, airInF); digitalWrite(APfrontOUT, airOutF); digitalWrite(led, airInF); }

switch (Buttonstate) {

void AirPulsing2Back(){ unsigned long ms2 = millis (); //Air In

long duration; int distance;

case HIGH: RunThis(); break; case LOW: digitalWrite(APfrontIN, LOW); digitalWrite(APfrontOUT, LOW); digitalWrite(APbackIN, LOW); digitalWrite(APbackOUT, LOW); digitalWrite(led, LOW);

//INTERVALS long interval1; long interval2;

} }

//ULTRASONIC const int trigPin = 5; const int echoPin = 6;

//RANGE2 //FRONT const unsigned const unsigned //BACK const unsigned const unsigned

void RunThis(){ long ONtimeF2 = 500UL; //AIRIN long OFFtimeF2 = 500UL; //AIROFF long ONtimeB2 = 500UL; //AIRIN long OFFtimeB2 = 500UL; //AIROFF

DistanceSensing(); //TOUCH SENSOR long start = millis(); long total1 = cs_4_7.capacitiveSensor(30);

//RANGE3 //FRONT const unsigned const unsigned //BACK const unsigned const unsigned

//RANGES long ONtimeF3 = 1000UL; //AIRIN long OFFtimeF3 = 1000UL; //AIROFF long ONtimeB3 = 1000UL; //AIRIN long OFFtimeB3 = 1000UL; //AIROFF

//RANGE4 //FRONT const unsigned const unsigned //BACK const unsigned const unsigned

break;

//RANGE 1 - TOUCH if (distance <40 && total1 >100){ Serial.println("distance is less than 40, someone touched the costume"); AirPulsing2Front(); AirPulsing2Back(); }

long ONtimeF4 = 10000UL; //AIRIN long OFFtimeF4 = 6000UL; //AIROFF long ONtimeB4 = 10000UL; //AIRIN long OFFtimeB4 = 6000UL; //AIROFF

unsigned long preMillis = 0; unsigned long preMillis2 = 0; //AIR PUMP //Front int airOutF = HIGH; int airInF = LOW; //Back int airOutB = HIGH; int airInB = LOW; //pins airpumps const int APfrontIN = 9; //AIRIN FRONT const int APfrontOUT = 10; //AIROUT FRONT const int APbackIN = 11; //AIRIN BACK const int APbackOUT = 3; //AIROUT BACK //TOUCH SENSOR CapacitiveSensor cs_4_7 = CapacitiveSensor(4,7); //4,7 PIN //LED LIGHT int led = 8;

void setup() { //BUTTON pinMode(ButPin, INPUT); //AIR PUMPS pinMode (APfrontIN, OUTPUT); pinMode (APfrontOUT, OUTPUT); pinMode (APbackIN, OUTPUT); pinMode (APbackOUT, OUTPUT); digitalWrite(APfrontIN, LOW); digitalWrite(APfrontOUT, LOW); digitalWrite(APbackIN, LOW); digitalWrite(APbackOUT, LOW); //ULTRASONIC pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output pinMode(echoPin, INPUT); // Sets the echoPin as an Input //LED pinMode(led, OUTPUT); //TOUCH SENSOR cs_4_7.set_CS_AutocaL_Millis(0xFFFFFFFF); Serial.begin(9600); // Starts the serial communication } void loop() { checkBut(); button(); }

void checkBut(){ reading = digitalRead(ButPin); if (reading == HIGH && previous == LOW && millis() - time > debounce) {

//RANGE 3 - CLOSE else if (distance < 40){ Serial.println("distance is less than 40, range 2"); AirPulsing3Front(); AirPulsing3Back(); } //RANGE 3 - APPROACHING else { Serial.println("button pressed, range 3"); AirPulsing4Front(); AirPulsing4Back(); } } void AirPulsing2Front(){ unsigned long ms = millis (); //Air In if ((millis() - preMillis) >= interval1){ preMillis = ms; interval1 = ms; if (airInF == LOW && airOutF == HIGH){ interval1 = ONtimeF2; airInF = HIGH; airOutF = LOW;} else { interval1 = ms; interval1 = OFFtimeF2; airInF= LOW; airOutF = HIGH;}

} digitalWrite(APfrontIN, airInF); digitalWrite(APfrontOUT, airOutF); digitalWrite(led, airInF); } void AirPulsing3Front(){ unsigned long ms = millis (); //Air In

if ((millis() - preMillis2) >= interval2){ preMillis2 = ms2; interval2 = ms2; if (airInB == LOW && airOutB == HIGH){ interval2 = ONtimeB2; airInB = HIGH; airOutB = LOW;} else { interval2 = ms2; interval2 = OFFtimeB2; airInB = LOW; airOutB = HIGH;}

} digitalWrite(APbackIN, airInB); digitalWrite(APbackOUT, airOutB); } void AirPulsing3Back(){ unsigned long ms2 = millis (); //Air In

if ((millis() - preMillis2) >= interval2){ preMillis2 = ms2; interval2 = ms2; if (airInB == LOW && airOutB == HIGH){ interval2 = ONtimeB3; airInB = HIGH; airOutB = LOW;} else { interval2 = ms2; interval2 = OFFtimeB3; airInB = LOW; airOutB = HIGH;}

} digitalWrite(APbackIN, airInB); digitalWrite(APbackOUT, airOutB); } void AirPulsing4Back(){ unsigned long ms2 = millis (); //Air In

if ((millis() - preMillis2) >= interval2){ preMillis2 = ms2; interval2 = ms2; if (airInB == LOW && airOutB == HIGH){ interval2 = ONtimeB4; airInB = HIGH; airOutB = LOW;} else { interval2 = ms2; interval2 = OFFtimeB4; airInB = LOW; airOutB = HIGH;}

} digitalWrite(APbackIN, airInB); digitalWrite(APbackOUT, airOutB); }

void DistanceSensing(){ //ULTRASONIC digitalWrite(trigPin, LOW); delayMicroseconds(20); // Sets the trigPin on HIGH state for 10 micro seconds digitalWrite(trigPin, HIGH); delayMicroseconds(100); digitalWrite(trigPin, LOW); // Reads the echoPin, returns the sound wave travel time in microseconds duration = pulseIn(echoPin, HIGH); // Calculating the distance distance= duration*0.034/2; }

if ((millis() - preMillis) >= interval1){ preMillis = ms; interval1 = ms; if (airInF == LOW && airOutF == HIGH){ interval1 = ONtimeF3; airInF = HIGH; airOutF = LOW;} else { interval1 = ms; interval1 = OFFtimeF3; airInF = LOW; airOutF = HIGH;}

} digitalWrite(APfrontIN, airInF); digitalWrite(APfrontOUT, airOutF); digitalWrite(led, airInF); } void AirPulsing4Front(){ unsigned long ms = millis (); //Air In

if ((millis() - preMillis) >= interval1){ preMillis = ms; interval1 = ms; if (airInF == LOW && airOutF == HIGH){ interval1 = ONtimeF4; airInF = HIGH;

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