Transcript Art-Net: How it works and the benefits in large scale

Artistic Licence
Art-Net
How it works and its benefits in large
scale installations.
Wayne Howell
Creative Director
Artistic Licence
Art-Net at PLASA09 by Wayne Howell
Wayne Howell
• Creative Director Artistic Licence
• Inventor of Art-Net
• Active in ESTA Standards Programme
• Member of DMX512 design group
• Member of RDM design group
Art-Net at PLASA09 by Wayne Howell
Agenda
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One hour session
The history
What is Art-Net?
How does Art-Net work?
Large scale applications
Good network design
Art-Net at PLASA09 by Wayne Howell
The History of Art-Net
Art-Net at PLASA09 by Wayne Howell
Audience Participation
But first audience participation
time:
• What do you do?
– End User
– Manufacturer
– Distributer
– Developer
– Specifier
Art-Net at PLASA09 by Wayne Howell
Audience Participation
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Who uses DMX regularly?
Who uses Ethernet regularly?
Who uses Art-Net regularly?
Who understands the term
“Collision Domain”?
• Who cares whether they
understand the term “Collision
Domain”?
Art-Net at PLASA09 by Wayne Howell
History
• 30 years ago
– Analogue multicore
• 25 years ago
– Analogue multiplex
• 20 years ago
– DMX512
• 15 years ago
– DMX512 multicore
• 10 years ago
– Networking
Art-Net at PLASA09 by Wayne Howell
Analogue Multicore
• Single wire = Single channel
• Multiple formats:
– 0 to +5V
– 0 to -12V
– 0 to +10V
• Incompatible connectors:
– DB25
– DB37
– Socapex 37
Art-Net at PLASA09 by Wayne Howell
Analogue Multiplex
• Single wire = Multiple channel
• Driven by theatre industry
• Multiple formats:
– AMX192
– D54
– S20
Art-Net at PLASA09 by Wayne Howell
Digital Multiplex
• Single wire = Multiple channel
• Longer cable length
• Higher channel count
• Improved reliability
• Proprietary solutions
• Compatibility issues
Art-Net at PLASA09 by Wayne Howell
DMX512
• Developed by USITT
• Managed by ESTA
• 512 channels per cable
• 300m maximum distance
• 32 Fixtures per cable
• Standardised across manufacturers
Art-Net at PLASA09 by Wayne Howell
Networking
• LED technology increases
channel thirst exponentially
• 512 channels no longer
adequate
• Network technology offers
the solution
Art-Net at PLASA09 by Wayne Howell
Early Protocols
• Strand ShowNet
• ETC ETCNet
• Other proprietary
protocols.
• Cast WYSIWYG
• Art-Net
Art-Net at PLASA09 by Wayne Howell
Art-Net
• Conceived as a DMX
Multicore
• Solved a problem
• Published on a royalty free
basis
• Widespread industry support
Art-Net at PLASA09 by Wayne Howell
Ethernet
Why use for Lighting?
• Existing network protocols
• Low cost Cat5 cable
• Better contractor
understanding
• Higher bandwidth
• Existing building networks
can be used
Art-Net at PLASA09 by Wayne Howell
Ethernet
Why use for Lighting?
• Progression path to faster
systems
• Leverage existing IT market
technology
• A 10BaseT network cable can
carry approximately 40 times
more data than a DMX cable
Art-Net at PLASA09 by Wayne Howell
Ethernet
Why use for Lighting?
• Ethernet can be
transmitted over a variety
of media:
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WiFi
LASER
Telephones
ADSL
ISDN
Fibre optic
Art-Net at PLASA09 by Wayne Howell
Ethernet
Why use for Lighting?
• All modern ethernet
wiring is star format
• Increases system
reliability compared to
‘Ring’ or ‘Loop
Through’
• Better configurability
Art-Net at PLASA09 by Wayne Howell
Ethernet
The down side
• Star wiring topology makes
touring applications more
complex
• Cable distance limited to
100m
• Higher knowledge levels
required by designers &
installers
Art-Net at PLASA09 by Wayne Howell
Art-Net
The Benefits
• Remote patching of all
DMX512 inputs and outputs
• Allows DMX512 data to be
merged in either LTP or HTP
• Simple to implement new
features – e.g. remote
control of the lighting
console
Art-Net at PLASA09 by Wayne Howell
Art-Net
The Benefits
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Supports RDM standard
Macro triggering
Open access to protocol
Free and public domain
resources such as:
– DMX-Workshop
– WireShark
– Net-View allows monitoring via a
radio link
Art-Net at PLASA09 by Wayne Howell
Is DMX Dead?
• No!
• Art-Net will work
together with DMX
• Ethernet would not
work in all applications
• Commercial resistance
to change
Art-Net at PLASA09 by Wayne Howell
A Networking Primer
Art-Net at PLASA09 by Wayne Howell
Ethernet
How To Use It
• Ethernet is less forgiving
than DMX512
• Follow the rules
• Use the correct cable
• Use the correct connectors
Art-Net at PLASA09 by Wayne Howell
Ethernet
Media Types
• Media Type is the physical
entity used to carry the data.
Copper or Fibre.
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Cat1 to Cat4 not important
Cat5: 10BaseT & 100BaseT
Cat5e: Better Cat5
Cat6: Gigabit (1000BaseT)
Cat7: 10 Gigabit
Art-Net at PLASA09 by Wayne Howell
Ethernet
Physical Layer
• Physical Layer means the
network electrical
connection
• Example: 10BaseT
– T = Twisted Pair
– Base = Baseband
– 10 = Multiply by 106 for
bps
Art-Net at PLASA09 by Wayne Howell
Ethernet
Physical Layer
• 10Base2
• Old style coaxial cable
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Speed: 10 Meg
Max Cable: 185m
Topology: Ring (Delta)
Band: Baseband
• No longer in widespread use
Art-Net at PLASA09 by Wayne Howell
Ethernet
Physical Layer
• 10BaseT
• Uses UTP Cat5 cable
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Speed: 10 Meg
Max Cable: 100m
Topology: Star
Band: Baseband
• Widely used in Entertainment
Networks – particularly for end
data delivery
Art-Net at PLASA09 by Wayne Howell
Ethernet
Physical Layer
• 100BaseT (Fast Ethernet)
• Uses UTP Cat5 cable
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Speed: 100 Meg
Max Cable: 100m
Topology: Star
Band: Baseband
• Widely used in Entertainment
Networks – particularly for
console communications.
Art-Net at PLASA09 by Wayne Howell
Ethernet
Physical Layer
• 100BaseFx
• Uses fibre optic cable
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Speed: 100 Meg
Max Cable Single Mode: 10km
Max Cable Multimode: 2km
Topology: Star
Band: Baseband
• Widely used to back bones in
Entertainment Technology
Art-Net at PLASA09 by Wayne Howell
Ethernet
Physical Layer
• 1000BaseT (Gigabit)
• Uses UTP Cat6 cable
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Speed: 1000 Meg
Max Cable: 100m
Topology: Star
Band: Baseband
• Widely used video streaming
applications.
Art-Net at PLASA09 by Wayne Howell
Ethernet
The Cable
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Coaxial
UTP
STP
Fibre
– Single Mode
– Multi Mode
Art-Net at PLASA09 by Wayne Howell
Ethernet
The Cable
• Solid Conductor:
– Installation
– 100m for 10BaseT
• Stranded or Patch
– Portable
– Patch Bay
– 80m for 10BaseT
Art-Net at PLASA09 by Wayne Howell
Ethernet
The Connector
• RJ45
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Screened
Wire Type
Cat Rating
Industrial – (Neutrik)
Waterproof –
(Woodhouse)
Art-Net at PLASA09 by Wayne Howell
Ethernet
Wiring Schemes
• MDI
– Used on all Nodes
– 4 wires used for
10BaseT & 100BaseTX
– 8 wires used for
100BaseT4 & Gigabit
Art-Net at PLASA09 by Wayne Howell
MDI
Pin
Name
Purpose
1
Tx+
Transmit Data
2
Tx-
Transmit Data
3
Rx+
Receive Data
4
BD3+
Not used in
10BaseT
5
BD3-
Not used in
10BaseT
6
Rx-
Receive Data
7
BD4+
Not used in
10BaseT
8
BD4-
Not used in
10BaseT
Ethernet
Wiring Schemes
• MDI-X
– Used on all Hubs,
Switches & Routers
– MDI-X is MDI with built
in cross over cable
Art-Net at PLASA09 by Wayne Howell
MDI-X
Pin
Name
Purpose
1
Rx+
Receive Data
2
Rx-
Receive Data
3
Tx+
Transmit Data
4
BD3+
Not used in
10BaseT
5
BD3-
Not used in
10BaseT
6
Tx-
Transmit Data
7
BD4+
Not used in
10BaseT
8
BD4-
Not used in
10BaseT
Ethernet
Wiring Schemes
• Auto-MDI
– Many products now
automatically detect
and correct MDI / MDIX wiring errors
– Hubs usually have an
‘UpLink’ port that has
MDI wiring
Art-Net at PLASA09 by Wayne Howell
Ethernet
Wiring Schemes
• Auto-Polarity
– Auto-Polarity is
different to Auto-MDI
– It corrects for a miswired pair.
Art-Net at PLASA09 by Wayne Howell
Ethernet
Straight or Cross?
• Straight Cable
– Hub to Node
– MDI to MDI-X
• Cross Cable
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Node to Node
Hub to Hub
MDI to MDI
MDI-X to MDI-X
Art-Net at PLASA09 by Wayne Howell
Ethernet
Cable Colours
• Colours:
– Yellow = Straight
– Red = Cross
– Green = DMX
Art-Net at PLASA09 by Wayne Howell
Ethernet
Data Distribution
• Hub:
– Just an electrical
repeater
– Analogous to DMX
Splitter
– Follow 5-4-3 Rule
Art-Net at PLASA09 by Wayne Howell
Ethernet
Data Distribution
• Switch (Bridge):
– Intelligent repeater
– Retransmits data
– Terminates Collision
Domain
– No 5-4-3 Rule
Art-Net at PLASA09 by Wayne Howell
Ethernet
Hub or Switch?
• Hub:
– Faster
– No configuration
– No broadcast blocking
• Switch:
– Bandwidth
management
– No 5-4-3
Art-Net at PLASA09 by Wayne Howell
?
How does Art-Net work?
Art-Net at PLASA09 by Wayne Howell
Under the hood
The ArtDmx Packet
• Contains 512 bytes of
data from DMX512.
• The destination
Universe
• A few control fields for
error checking
Art-Net at PLASA09 by Wayne Howell
Broad – Uni- Multi Casting
• Broadcast
– One to All
• Unicast
– One to One
• Multicast
– One to Many
Art-Net at PLASA09 by Wayne Howell
Broadcasting
• Original concept of
“Digital Multicore”
used Broadcast
• Benefit of simplicity
for users
• Burns network
bandwidth
Art-Net at PLASA09 by Wayne Howell
Art-Net II
• Needed as universe
count increased.
• Uses simple
algorithm to Unicast
• Fully compatible with
Art-Net I
Art-Net at PLASA09 by Wayne Howell
Polling
• ArtPoll
– Console broadcasts
“Who is there?”
• ArtPollReply
– Dimmers and lamps
reply with their
information and status
Art-Net at PLASA09 by Wayne Howell
Sensing
• ArtTod
– End devices broadcast
their list of connected
RDM devices
• ArtRdm
– Art-Net is used as a
carrier to route RDM
messages over the
network
Art-Net at PLASA09 by Wayne Howell
What is RDM?
• RDM is a new way of
sending data in two
directions over the
DMX cable
• Set the start address
or personality
remotely
• Retrieve sensors and
status
Art-Net at PLASA09 by Wayne Howell
How does it work?
• It uses pins 2 & 3 just like
DMX512
• The direction of the DMX
cable occasionally
switches to let data
return
Art-Net at PLASA09 by Wayne Howell
Conclusions
Art-Net leverages the following
technologies to provide a public
and royalty free solution to today’s
lighting control needs:
• DMX512
• RDM
• Ethernet
• TCP/IP
Art-Net at PLASA09 by Wayne Howell
Large Scale Applications
Art-Net at PLASA09 by Wayne Howell
Broadgate
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Colour Changing Fixtures
Control System
Installation
Training
Programming
Maintenance
Art-Net at PLASA09 by Wayne Howell
The Fixture
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Colour Change
In-Ground
Waterproof
Low Power
Low Maintenance
Long Life
Remote Configured
Art-Net at PLASA09 by Wayne Howell
The Sensors
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Line Voltage
Temperature
Water
Start address
Lamp on time
Fixture on time
Firmware
Art-Net at PLASA09 by Wayne Howell
U1-111-120
U1-117-120
U1-123-122
U1-105-118
U1-117-116
U1-123-118
U1-105-114
U1-111-114
U1-117-114
U2-117-112
U2-123-114
U2-105-110
U2-111-110
U2-117-110
U2-123-112
U2-123-110
U2-105-106
U2-111-106
U2-117-106
U2-123-108
U2-105-104
U2-111-104
DMX Universe 1
Iso-spit #3
U2-105-108
U1-105-120
U1-111-116
U2-111-112
DMX-Cat #3
U1-111-118
U1-122-123
U1-105-116
Art-Net at PLASA09 by Wayne Howell
U1-117-122
Iso-spit #4
U2-117-108
Ether-Lynx #2
U2-105-112
DMX-Cat #4
U1-123-120
Ether-Lynx #1
U1-111-122
Iso-spit #2
U2-111-108
DMX-Cat #2
U2-123-116
Iso-spit #1
U1-117-118
DMX-Cat #1
U1-105-122
Ethernet
Ethernet Hub
Colour-Tramp PC
Ethernet
DMX Universe 2
The Network
Pan Peninsular
Ballymore Properties Landmark in London
Art-Net at PLASA09 by Wayne Howell
Knoxx Nightclub
Largest club light feature in Europe
Art-Net at PLASA09 by Wayne Howell
UB40 Dub Sessions
So is DMX dead?
Art-Net at PLASA09 by Wayne Howell
City of Dreams - Macau
Bubble Theatre is one part of massive control network
Art-Net at PLASA09 by Wayne Howell
O2 Dome
A holistic approach to lighting control
Art-Net at PLASA09 by Wayne Howell
Hotel Puerta de America
Madrid
Control and streaming video
Art-Net at PLASA09 by Wayne Howell
Aspire Tower Doha
High speed animation
Art-Net at PLASA09 by Wayne Howell
Still confused about
ethernet?
• Rock Solid Ethernet
about ethernet in
entertainment
technology
• Written by Artistic’s
Wayne Howell
• Available from ET
Press
• See us on Stand E32
Art-Net at PLASA09 by Wayne Howell
Artistic Licence
Art-Net
Visit Artistic Licence on Stand E32
Wayne Howell
Creative Director
Artistic Licence
Art-Net at PLASA09 by Wayne Howell