sensible public lighting
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Sensible Public Lighting
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sponsorhttp:/
/www.l
umec.c
om
/company
/fon
da
tion
_c
lu_
summary.h
tml
fondation concept lumire urbaine
(clu):
foundation description
Mission
The CLU Foundation bestowed on itself the goal of
encouraging young designers to develop innova-
tive lighting concepts for exterior public spaces. To
achieve this and serve its purpose, the CLU Founda-
tion hatched the plans for a creative competition that it
holds annually since then, attributing grants to numer-
ous projects based on their merit.
Objectives
The CLU Foundation aims excellence by encouraging
conscious integration of the plastic quality of the prod-
ucts, technical advancements in exterior lighting andenvironmental respect.
Board Members
Members of the CLU Foundation share a vision for the
future: to open the CLU Foundation to the world and
to encourage the industrys next generation to ques-
tion issues that require more than developing a prod-uct as a solution; we encourage the development of
global solutions that link humans to their environment,
thanks to light.
M. Mathieu Casavant, M. Faber Cayouette, M. Jona-
than Hardy, M. Daniel Lefebvre, M. Patrick Morand,
M. Guy Moreau, M. Ernesto Quintana, Mme Marie-
Claude Robert, Mme Genevive Rocheleau, Mme Pas-
cale Savard
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CLU 2009-2010: 1ER PRIX
CLU 2009-2010: 2E PRIXhttp:/
/www.lu
mec.c
om
/pdf/CLUgagnan
ts20
09-2
010
_FR
.pdf
http:/
/www.l
umec.c
om
/pd
f/CLUgagnan
ts2009-2
010
_FR
.pdf
fondation concept lumire urbaine
(clu):
grant description
2010-2011 EDITION
THEME : LIGHT IT FOR HUMANITY
The Context
The need for public lighting is constantly evolving
on the planet and follows the phenomenon of urban
development. If, in 1800, only 2% of the world popula-
tion lived in urban areas, today, the urban population
equals and will soon exceed the rural population in the
world. If, until the mid-twentieth century, the majority
of the worlds urban population was concentrated in
developed areas of North America and Europe, urban
growth has now shifted to development areas. Youshould know that by 2030, over 80% of the global ur-
ban population is expected to be concentrated in Asia,
Africa as well as in Latin America and the Caribbean.
Where can we nd users of street lighting? Today,
the majority of the worlds urban population resides in
small and medium towns and most city dwellers live in
smaller cities. About 16% of city dwellers live in citiesof more than 5 million inhabitants. An important data
indicates that in 2007, over 30% of the worlds urban
population - 1 billion people - lived in shanty towns,
90% of them located in development areas. These
ndings indicate that one out of three city dweller lives
in a shanty town.
More and more frequently, natural disasters disrupt
entire, and often densely populated, regions; popula-
tions see their infrastructure destroyed and must live
through a lengthy rebuilding process. These people
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CLU 2009-2010: 3E PRIX EX-AEQUO
CLU 2009-2010: 3E PRIX EX-AEQUOhttp:/
/www.lu
mec.c
om
/pdf/CLUgagnan
ts20
09-2
010
_FR
.pdf
http:/
/www.l
umec.c
om
/pd
f/CLUgagnan
ts2009-2
010
_FR
.pdf
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then have to rely on public lighting as a light source
for their safety, their economic lives and their collective
activities. Lets not forget that the most heavily popu-
lated areas are located in the warmer regions of the
planet; where people live a lot at night when the tem-
perature is milder.
For all those people devoid of a reliable source of
energy and light, lighting can ensure wealth for all
The Contest
With this contest, the CLU Foundation wishes to give
new meaning to public lighting and provoke the emer-
gence of sensitivity to the need of mankind to benet
from the available light, to share and take ownership.
The boundary between street lighting and the user can
disappear to become the service point of luminous en-
ergy to the whole community. Public lighting is a re-
sponse to the needs of human beings, and your solu-
tions will be the answer.
The challenge this year is to design lighting solutions
that can be shared and meet the most daring expecta-
tions:
- A central gathering point
- A Source and connection accessible to the entirecommunity
- A Realization that supports the vitality of social ex-
change
- A viable alternative to the use of other fuels (gasoline,
wood, etc.).
- An economical design with regard to materials and
components (3R), that is also aesthetically and cultur-ally meaningful
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CLU 2009-2010: MENTION ESTHTIQUE
CLU 2009-2010: FINALISTEhttp:/
/www.lu
mec.c
om
/pdf/CLUgagnan
ts20
09-2
010
_FR
.pdf
http:/
/www.l
umec.c
om
/pd
f/CLUgagnan
ts2009-2
010
_FR
.pdf
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Schedule
Launch of the 2010-2011 Edition: Januray 10th, 2011
Date for submission: May 2nd, 2011
Jury Session: May 25th, 2011
Laureates Announcement: June 2nd, 2011
Evaluation criteria
ESTHETIC MERIT
Object in general; proportions (global quality);
Materials, innovation and assembling details;
Form versus function;
Color, rendering and image or marketing impact
TECHNOLOGICAL MERIT
Object in general; form versus technology;
Functionnality and handling methods;
Challenge and fabrication solution;
Technical mechanical and instructional innovations.
ENVIRONMENTAL MERIT
Solutions integrating environmental sensibility, func-
tionality and respect of natural habitats;
Autonomy or low energy consumption;
A strive to reduce lighting pollution integrating the
dark sky norms;LEED project or a preoccupation to recycling and/or
use of non-polluting components.
THEORETICAL MERIT
Originality of the subject;
Historical value and bibliographical research;
Writing quality and educational approach;Practical application.
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kalahari bushmen traditional dancehttp:/
/www.
ickr.com
/pho
tos
/tw
iga
_swa
la/2299138533/
http:/
/www.o
urla
tes
tvaca
tion.c
om
/ty
bee
/lighthouse
2.j
pg
design research
public lighting
Bonfre
In the ancient time, public lighting was a bonre. Bon-
re is a centerpiece for a gathering space as well as
a vehicle for ceremonies, rituals and event.
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Tybee Island lighthouse
Beacon
As the society grew larger and the territory extended
to great distances, public lighting became a beacon.
Signal re is the means for communicating between
distant settlements and a lighthouse is the instrument
for guiding the sailors traveling the dark oceans.
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Self-regulating arc lamp, w.Staite/w.Petrie, 1847
Moonlight tower, San Jose,1881
Photo by Lynn Monson, The Ann Arbor Newshttp:/
/www.m
live.c
om
/news
/ann-arbor/
inde
x.s
sf/2009/03/as
_ann
_ar-
bor_o
bserve
s_
eart
h_
ho.h
tml
http:/
/en.w
ikipe
dia
.org
/wiki/File:S
taite-Pe
trie
_Lamp
_18
47
.png
http:/
/en.w
ikipe
dia
.org
/wiki/File:San
Jose
Arc
LightTower1
881
.jpg
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Birth Street Lights
The advancement of technology and the development
of urban environment made possible the birth of street
lights.
Urban Infrastructure
In modern towns and cities, public lighting is one of
the key elements of urban infrastructure. It is an inte-
gral part of the urban fabric, preventing accidents and
increasing public safety.
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Nude Descending A Staircase N0.2, Duchamp, 1912
Duchamp walking down stairs, Eliot Elisofon, 1953
http:/
/blanc
hardmo
dernart.b
logspo
t.com
/2010/10/marc
el-duc
hamp-
an
d-surrea
lism.h
tml
http:/
/bo
b520
.wordpress.c
om
/2010/09/14/marce
l-duchamp
/
http:/
/c-mons
ter.ne
t/blog
1/tag
/chris-burden
/
design research
Concepts
Motion
Overlay of movement and time
Chris Burdens Urban Light
Aggregation/ Field
Aggregation of smaller parts as the overall physical
manifestation of the project
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STEREOs First View of the Sun, Dec. 4, 2006
The Architecture of the Well-tempered Environment
http:/
/www.n
asa.g
ov
/mu
ltime
dia/imagega
llery
/image_f
ea
ture
_736
.html
Particle System
The term particle system refers to a computer graph-
ics technique to simulate certain fuzzy phenomena.
Examples: re, explosions, smoke, moving water,
sparks, falling leaves, clouds, fog, snow, dust, mete-or tails, hair, fur, grass, or abstract visual effects like
glowing trails, magic spells, etc.
Campfre
Reyner Banham, in his introduction to the book,
The Architecture of the Well-tempered Environment,
compares the substantial architectures erected from
inert material structures with what can be dened as
the architecture of campre with dynamic boundary
condition and negotiable characteristics based on the
changes in the context.
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liquid space by ross lovegrovehttp:/
/www.d
es
ign
boom.com
/we
blog
/ca
t/8/view
/4892/d
es
ign-m
iam
i-
08-swarovs
ki-crys
tal-palace-l
iqu
id-space-by-ross-lovegrove.h
tml
http:/
/www.n
ova.e
thz.c
h/in
dex.p
hp
design research
relevant projects
liquid space
Aggregation of elements and its reective quality cre-
ates an ephemeral appearance.
NOVA by ETH Zurich
NOVA
3 dimensional display using a matrix of LEDs creates
a volume of light.
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Horse with No Shadow, Makoto Tojiki
LIGHT SHOWER By Bruce Munrohttp:/
/www.li
ghtshower.co.u
k//
http:/
/www.m
ako
totojiki.com
/horse.h
tml
Horse with no Shadow
3 dimensional sculpture using LEDs creates an non-
physical characteristic.
Light Shower
A light projected to a eld of diffusing elements cre-
ates a phantasmic atmosphere.
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Flyfire, SENSEable City Laboratoryhttp:/
/sensea
ble
.mit
.edu/y
re
/
http:/
/www.b
rucemunro.c
o.u
k/e
ld.a
sp
design research
relevant projects
Flyfre
A large number of self-organizing micro helicopters
containing LEDs become a pixels that can become a
3 dimensional display in motion.
field of light, bruce munro
Field of Light
A eld of LED embedded objects juxtaposed with the
environment.
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Sky Ear, Osman Hague
Ocean of Light, Squidsouphttp:/
/www.in
terac
tivearc
hitec
ture.o
rg/ocean-o
f-lig
ht-squ
idsoup.h
tml
http:/
/www.h
aque.c
o.u
k/
skyear.p
hp
Sky Ear
LEDs are incorporated into a group of helium lled bal-
loons that are oating in the air.
Ocean of Light
A eld of LED strips are suspended from above creat-
ing a dramatic effect.
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Initial Concept Sketch
design research
project discription
Concept
Public lighting that can become:
A gathering space for events
A beacon for communication
And an infrastructure for public safety
Sensing and Acutation
Interactivity
The proposed public lighting responds to the density
of surrounding people
The 4 PIR Motion Sensors embedded in the proj-
ect detects the presence of the people around. As
the number of sensors that are detecting presence
increases, the lighting shifts to different modes.
- 0 PIR Sensors triggered: Default mode(Random
cycling of colors)
- 1-2 PIR Sensors triggered: Mode 1(Beacon lighting)
- 2-4 PIR Sensors triggered: Mode 2(Bonre lighting)
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Twitter API+Processing
Crowd sending and visualization
Crowd Sensing
The color of the lighting responds to the public
awareness on Boston safety.
- Crowdsensing: The public awareness of safety is
collected utilizing the Twitter API as source of infor-
mation.
Data Mapping
The color of the lighting changes depending on the
average of the #BostonSafety + rating in number, 1
meaning dangerous, 5 meaning very safe.
e.g. #BostonSafety 1, #BostonSafety 3, ...etc.
safedangerous
safety rating average(last 5 twits)
1 5432
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design research
concept Visualization
Default Mode(0 PIR Sensor triggered)
Crowd Sensing Data Mapping(1-5)
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Beacon Mode(1-2 PIR Sensor triggered)
Bonfire Mode(3-4 PIR Sensor triggered)
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design research
concept Visualization
RGB LEDs
Circuit
Circuit
RGB LEDs
RGB LEDs
RGB LEDs
PIR Moon Sensor
Base Plates
Core Structure
Light Difusers
Fastener Plate
Fastener Plate
Light Difusers
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RGB LED Technical Datahttp:/
/www.s
park
fun.c
om
/pro
duc
ts/105
http://wiring.org.co/learning/basics/rgbled.html
http:/
/itp
.nyu
.edu
/physcomp
/sensors
/Reports
/PIRMo
tion
Sensor
http:/
/www.s
park
fun.c
om
/pro
duc
ts/8630
Technical Reasearch
sensor/actuation components
RGB LED
Model No.: YSL-R596CR3G4B5C-C10
Manufacturer: China Young Sun LED Technology
Features:
Forward Voltage (RGB): (2.0, 3.2, 3.2)VLuminosity (RGB): (800, 4000, 900)mcd
PIR Motion Sensor
PIR Motion Sensor
Model No.: SEN-08630
Manufacturer: Hanseelec
PIR Motion Sensor activates lights or security cam-
eras or alarms when it detects infrared energy close
to it. It basically scans an area and then detects
movement inside of it. When it does, it sends a low
through the alarm pin (black wire).
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Arduino Mega 2560
abstract01js by Marius Watzhttp:/
/process
ing
js.o
rg/
http:/
/ardu
ino.c
c/en
/Ma
in/Ardu
ino
Board
Mega
2560
Arduino Mega 2560
The Arduino Mega 2560 is a microcontroller board
based on the ATmega2560. It has 54 digital input/out-
put pins (of which 14 can be used as PWM outputs),
16 analog inputs, 4 UARTs (hardware serial ports), a
16 MHz crystal oscillator, a USB connection, a powerjack, an ICSP header, and a reset button. It contains
everything needed to support the microcontroller
Processing
Processing is an open source programming language
and environment for people who want to create im-
ages, animations, and interactions. Initially developed
to serve as a software sketchbook and to teach fun-
damentals of computer programming within a visual
context, Processing also has evolved into a tool for
generating nished professional work.
Sensible Light utilizes Processing as a tool to link
Arduino with Twitter API.
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Twitter Hash Tag: #BostonSafety 1-5
http:/
/tw
itter.com
/
Technical Reasearch
Coding
Processing Code
//Tweets should be between 0 and 5 in rating
import processing.serial.*;
Serial myPort;
String queryString=#BostonSafety;
String startDate;
String endDate;
Twitter myTwitter;
int indicator;int queryCount;int [] SafetyRates=new int[1] ;
int radius=100;
oat SafetyAVE;
color c;
oat SafetyMappedToColor;
oat SafetyRed;
oat SafetyGreen;
oat SafetyBlue;
int toArduino;
void setup(){
myTwitter = new Twitter(SensibleLight, BostonSafety);
myPort = new Serial(this, Serial.list()[1], 9600); //The Index of the port
should be updated based on which port arduino is communicating with
processing
}
void draw() {
startDate=nf(year(),4)+-+nf(month(),2)+-+nf(day()-1,2);
endDate=nf(year(),4)+-+nf(month(),2)+-+nf(day(),2);
double time=millis()/1000;background(SafetyRed,SafetyGreen,SafetyBlue);
if(time%605){
for(int i=queryCount; i>queryCount-5; i--) {
SafetyAVE=SafetyAVE+SafetyRates[i];
println(SafetyRates[i]);}
}
SafetyAVE=SafetyAVE/queryCount;
//SafetyAVE=SafetyAVE+1;
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Processing Coding Interface
colorMode(HSB);
SafetyMappedToColor=map(SafetyAVE,1,5,0,175);
println(SafetyAVE);
c=color(SafetyMappedToColor,255,255);
SafetyRed=red(c);
SafetyGreen=green(c);SafetyBlue=blue(c);
colorMode(RGB);
toArduino=int(map(SafetyRed,0,255,0,2))*100+int(map(SafetyGreen,0,255,
0,2))*10+int(map(SafetyBlue,0,255,0,2));println(toArduino);
}
int updateTweets(String queryString) {
int queryCount=0;
for(int j=1; j
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Technical Reasearch
Coding
Arduino Code
int colorShiftMagnitude=50000;
long unsigned int pause = 500;
long unsigned int lowIn[4]={
0,0,0,0};
boolean lockLow[4] = {
true, true, true, true};
boolean takeLowTime[4]={
false, false, false, false};
int MotionState[4]={
0,0,0,0};
int totalState;
unsigned serialNumber=0;
unsigned lightIntensityValue=0;
int lightZone=1;
int userColor;
oat l_Radians;
oat l_ColorCycleRange= 127.4;
int redPin,greenPin, bluePin;
int red,green,blue;
int red01,red02,red03,red04;
int blue01,blue02,blue03,blue04;
int green01,green02,green03,green04;
int BlinkingFactor=1000;
int timer = 500;
int PIRState=0;
int zoneState=2;
void setup(){
Serial.begin(9600);
for(int i=2; i-1 && temp
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Arduino Coding Interface
else if(lightIntensityValue==110){
red=125;
green=125;
blue=0;
}
else if(lightIntensityValue==11){
red=0;
green=125;
blue=125;
}
else if(lightIntensityValue==101){
red=125;
green=0;blue=125;
}
else if(lightIntensityValue==220){
red=255;
green=255;
blue=0;
}
else if(lightIntensityValue==22){
red=0;
green=255;
blue=255;
}
else if(lightIntensityValue==202){
red=255;
green=0;blue=255;
}
//Serial.println(red);
//Serial.println(green);
//Serial.println(blue);
}
void CalculateColorCycle(){//Need renement interms of timeshift of cycles
l_Radians = millis()*0.0174532925;
red01 = l_ColorCycleRange + (l_ColorCycleRange * sin(l_Radians / 100));
blue01 = l_ColorCycleRange + (l_ColorCycleRange * sin(l_Radians / 200));
green01 = l_ColorCycleRange + (l_ColorCycleRange * sin(l_Radians / 300));
l_Radians = (millis()+colorShiftMagnitude)*0.0174532925;
red02 = l_ColorCycleRange + (l_ColorCycleRange * sin(l_Radians / 100));blue02 = l_ColorCycleRange + (l_ColorCycleRange * sin(l_Radians / 200));
green02 = l_ColorCycleRange + (l_ColorCycleRange * sin(l_Radians / 300));
l_Radians = (millis()+colorShiftMagnitude*2)*0.0174532925;
red03 = l_ColorCycleRange + (l_ColorCycleRange * sin(l_Radians / 100));
blue03 = l_ColorCycleRange + (l_ColorCycleRange * sin(l_Radians / 200));
green03 = l_ColorCycleRange + (l_ColorCycleRange * sin(l_Radians / 300));
l_Radians = (millis()+colorShiftMagnitude*3)*0.0174532925;
red04 = l_ColorCycleRange + (l_ColorCycleRange * sin(l_Radians / 100));
blue04 = l_ColorCycleRange + (l_ColorCycleRange * sin(l_Radians / 200));
green04 = l_ColorCycleRange + (l_ColorCycleRange * sin(l_Radians / 300));
}
void ControlLEDs(int red, int green, int blue, int zone){//Light Actuation Pin Allocation
// R G B
//Zone1 2 3 4
//Zone2 5 6 7
//Zone3 8 9 10
//Zone4 11 12 13
if (zone>4)
{
redPin=2+(zone-5)*3;
greenPin=3+(zone-5)*3;
bluePin=4+(zone-5)*3;
analogWrite(redPin,red);
analogWrite(greenPin,green);
analogWrite(bluePin,blue);
delay(10);
}
else{
redPin=2+(zone-1)*3;
greenPin=3+(zone-1)*3;
bluePin=4+(zone-1)*3;
delay(100);
if(millis()%(BlinkingFactor*2)>BlinkingFactor){
analogWrite(redPin,red);
analogWrite(greenPin,green);
analogWrite(bluePin,blue);
}
else {
analogWrite(redPin,red/2);
analogWrite(greenPin,green/2);
analogWrite(bluePin,blue/2);
}}
}
void readPIR(){
readPIRSensor(0);
readPIRSensor(1);
readPIRSensor(2);
readPIRSensor(3);
totalState=MotionState[0]+MotionState[1]+MotionState[2]+MotionState[3];
if(totalState==0) zoneState=2;
if(totalState==1 || totalState==2 )zoneState=1;
if(totalState==3 || totalState==4 )zoneState=0;
}
void readPIRSensor(int i){
int in=analogRead(i);
if(in 100){
if(takeLowTime[i]){
lowIn[i] = millis();
takeLowTime[i] = false;
}
if(!lockLow[i] && millis() - lowIn[i] > pause){
lockLow[i] = true;
MotionState[i]=0;delay(50);
}
}
}
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kalahari bushmen traditional dance
Prototyping Process
Circuit Prototyping
Sensors and Actuations
Input: 4 PIR Motion Sensors
Output: 4 layers of RGB LEDs
LED Array wiring diagram(for R)http:/
/le
d.lin
ear1.o
rg/le
d.w
iz
LED series/parallel array wizard
The LED series/parallel array wizard is a calculator
that will help you design large arrays of LEDs.
Link: http://led.linear1.org/led.wiz
Input specs:
Source voltage
Diode forward voltage
Diode forward current(mA)
Number of LEDs in array
Output options:
ASCII
SchematicWiring diagram
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Image Caption
LED Parallel Array Testing8 RGB LEDs are parallel connected and grouped into
on output layer. 4 of these layers become the overall
actuation of the project.
LED Array wiring diagram(for R)
4 Layer Actuation Circuits
Based on the calculation and layering logic, a total of
32 RGB LEDs are soldered together in 4 groups us-
ing the appropriate resistors.
R Pin: 1 ohms
G Pin: 68 ohms
B Pin: 68 ohms
Ground Pin: N/A
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3 dimensional Form Study
Prototyping Process
Physical Manifestation
3 Dimensional Form Study
The physical manifestation is studied utilizing CAD
software.
Material Preparation
Material Preparation
Plexiglass was chosen as the main material for the
shell of the lighting. The outcome of the 3 dimension-
al form study was exported and cut using the laser
cutter.
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Assembly: Core, outer Fins
Final Prototype
Assembly
There are 2 major components regarding the overall
lighting. A core element that house the circuits, LEDs,
and the PIR sensors and an array of outer n ele-
ment that diffuse/ transmits light.
Final Prototype
The core element, outer n element, and the circuits
are assembled into the nal prototype.
CH.09 CH.08 CH.07 CH.06 CH.05 CH.04 CH.03 CH.02 CH.01
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Default Mode(0 PIR Sensor triggered)
Physical Manifestation
Final Prototype
Default Mode
When no presence is detected, the 4 layers of light
cycles through different shades of color.
Crowd Sensing Data Mapping(1-5)
Twitter API Data Color Coding
Depending on the average of the safety aware-
ness rating the color of the Beacon Mode and Bon-
re Mode lighting changes from red(dangerous) to
blue(safe).
CH.01 CH.02 CH.03 CH.04 CH.05 CH.06 CH.07 CH.08 CH.09
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Beacon Mode(1-2 PIR Sensor triggered)
Bonfire Mode(3-4 PIR Sensor triggered)
Beacon Mode
When 1 or 2 PIR Motion Sensors are triggered, the
light shifts to the top creating a Beacon lighting typol-
ogy.
Bonfre Mode
When 3 or 4 PIR Motion Sensors are triggered, the
light shifts to the bottom creating a Bonre lighting
typology.
CH.09 CH.08 CH.07 CH.06 CH.05 CH.04 CH.03 CH.02 CH.01
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Foundation CLU Submission
Final Boards
Board 1/2
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Board 1/2
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