Entertainment Lighting Control Network

Standardization to Support VLC Services

Oscar Rene Pineda LaverdeCristian Camilo Pinzon CardenasMaría Alejandra Zapata Mendoza

David Felipe Tosse M.

1

Introduction

2Video 1. [9] VLC- Visible Light Communication

Visible light communication (VLC) is a data communications medium which uses visible light between 400 and 800 THz (780–375 nm). VLC is a subset of optical wireless communications technologies.

3

The earliest electric lighting control systems used manually operated resistance or autotransformer dimmers.

After World War II allowed the dimmers to be remotely controlled.

From the 1950s until the 1980s generally used analog signals to control the dimmers, with each dimmer requiring a dedicated control wire to carry its signal.

By the 1980s, a DC factor standard of 0 to 10 volts DC positive, with the controller supplying the current, emerged.

HISTORY OF ENTERTAINMENT LIGHTING CONTROL NETWORKS POST

WORLD WAR II

By the mid-1980s, it was possible to multiplex the control signals and send them over control cables having only three to five conductors.

In 1986 the United States Institute for Theatre Technology (USITT) published two standards for multiplexed signal control of stage and studio dimmers: AMX192 and DMX512.

In 1998, USITT transferred the maintenance of the standard to the Entertainment Services and Technology Association (ESTA), and published the first edition of ANSI E1.11 in 2004.

4

HISTORY OF ENTERTAINMENT LIGHTING CONTROL NETWORKS POST

WORLD WAR II

Tomado de IEEE Standard for Local and metropolitan area networks: Part

15.7: Short-Range Wireless Optical Communication Using Visible Light . http://ieeexplore.ieee.org.ezproxy.unal.edu.co/stamp/stamp.jsp?tp=&arnumber=6016195

5

Tomado de IEEE Standard for Local and metropolitan area networks: Part

15.7: Short-Range Wireless Optical Communication Using Visible Light . http://ieeexplore.ieee.org.ezproxy.unal.edu.co/stamp/stamp.jsp?tp=&arnumber=6016195

HISTORY OF ENTERTAINMENT LIGHTING CONTROL NETWORKS POST

WORLD WAR II

LIGHTING CONTROL STANDARDS OVERVIEW

6

Figure 2. Connector EIA-485-A / RS485 [4]

Figure 4. IEE802.3 Ethernet / CSMA/CD [6]Figure 3. DMX512 Digital Multiplexer

Controller [5]

ESTA is now PLASA

7Figure 5. ESTA Logo [7]

Figure 6. PLASA Logo [8]

VLC project in PLASA (1)

Important facts:

- Used in entertainment sector applications

- At september of 2011 were presented schemes of modulation of VLC on IEEE 802.15.7

What was the idea?

Using DMX512 links for the delivery of the VLC service data8

VLC project in PLASA (2)

DMX521 protocol characteristics

- Data frame speed: 250 Kbits/s

- Balance connection

- Up to 512 channels

- Up to 450 m

- Does not correct errors

9Figure 7. DMX512 protocol time diagram [10]

10

BSR E1.45 —201x, Transport of IEEE 802 Data Frames over ANSI E1.11 (DMX512-A) - Project

Figure 8. Initial purpose for IEEE 802 data transmission[1]

Figure 9. Final format for IEEE 802 data transmission[1]

11

THE IMPACT AND CONCLUSION

● Lighting control networks could become an excellent solution, because they could be installed for energy savings and automatic controls, not only for VLC services.

● VLC requires a line of sight between the transmitter devices / receiver

References

[1] Sang-Kyu Lim, Karl G. Ruling, Insu Kim and Il Soon Jang, Entertainment Lighting Control Network Standardization to Support VLC Services, IEEE Communications Magazine, vol. 13, pp. 42–48, December 2013

[2] PLASA North America, American National Standard E1.11 – 2008 (R2013) Entertainment Technology USITT DMX512-A Asynchronous Serial Digital Data Transmission Standard for Controlling Lighting Equipment and Accessories , ANSI Board of Standards Review, version 3.1, pages 36, March 2013.

[3] IEEE Standards Association, IEEE Standard for Local and metropolitan area networks— Part 15.7: Short-Range Wireless Optical Communication Using Visible Light, IEEE Computer Society, pages 286, September 2011.

[4]EIA-485/RS485, Coelvi, http://www.coelvi.es/shop/es/conversores-bus/422-compacto-conversor-rs232-rs485.html

[5]DMX512, Xaris, http://e-xaris.net/iluminacion-y-efectos/167-controlador-dmx-para-24-luces-inteligentes.html

[6]IEE802.3 Ethernet / CSMA/CD, Computer networks, http://pharoah-net.blogspot.com.co/2011/12/logical-topology.html

[7]Grand stage, http://grandstage.com/links.html

[8]PLASA, http://www.plasa.org/.

[9] VLC Visible Light Communication https://www.youtube.com/watch?v=ZXh36P8QGM4

[10] Eduardo Yescas Mendoza, Diseño e implementación de un sistema de control para la iluminación de espectáculos basado en el protocolo DMX512, introducción a DMX512, Tesis de Maestría, Universidad Tecnológica de la Mixteca, Huajapan de León, Oaxaca, septiembre de 2009.

12

13

QUESTIONS

Video 1. [9] VLC- Visible Light Communication