Abstract
We present the design and implementation of the
Illuminator, a sensor network-based intelligent light control system for
entertainment and media production. Unlike most sensor network applications,
which focus on sensing alone, a distinc-tive aspect of Illuminator is that it
closes the loop from light sensing to lighting control. We describe the
Illuminator’s design requirements, system architecture, algorithms, implementation
and experimental results. To provide a light sensing module that meets the
high-performance light sensing requirements of entertain-ment and media
production applications, we developed the Illumimote, which is a multi-modal
and high fidelity light sensor module well-suited to wireless sensor networks.
The Illuminator system is a toolset to characterize the illumination profile of
a deployed set of fixed position lights, generate desired lighting effects for
moving targets (actors, scenic elements, etc.) based on user constraints
ex-pressed in a formal language, and assist in the set up of lights to achieve
the same illumination profile in multiple venues. After characterizing deployed
lights, the Illuminator computes at run-time optimal light settings to achieve
a user-specified actuation profile using an optimization framework based on a
genetic algorithm. Uniquely, it
can use deployed sensors to incorporate changing ambient lighting conditions
and moving targets into actuation. With experimental results, we demonstrate
that the Illuminator handles various high-level user’s constraints and
generates optimal light actuation profile. These results suggest that our
system should support entertainment and media production applications.
CHAPTER
ONE
INTRODUCTION
1.1
BACKGROUND
OF STUDY
Wireless Sensor Network (WSN) technologies
have enabled many interesting applications in pervasive and ubiquitous
computing [PK00]. UCLA’s history of interdisciplinary research among engineering,
media, performance and other arts provides an opportunity to explore
application of WSN technologies to entertainment, multimedia and media
production [BFM06]. The Advanced Technology for Cinematography (ATC) [WMB02]
project, a collaboration between the Net-worked and Embedded Systems Laboratory
(NESL) and the Center for Research in Engineering, Media and Performance
(REMAP), is exploring wireless sensor network support of filmmaking. The ATC
project seeks to enhance entertainment production and provide both increased
expressive capabilities and significant cost savings by deploying sensor
networks on film sets. In the ATC project, we initially focused on capturing
and archiving sensory data from the set into a database in frame-rate
synchronization using sensor network technologies. To do so, we developed the
Augmented Recording System (ARS) [SPB04] and demonstrated the possibilities and
usefulness of the wireless sensing in filmmaking. Although the ARS itself
provides many benefits, it is a one-way data collection application. On the
film set or in theater, there are many types of equipment to be controlled by
crews such as lights, audio and cameras, many of which use advanced digital
control systems but do not incorporate sensing. We wanted to explore the
possibilities of using WSN technologies to actuate and control such equipment,
not just monitor it. Because lighting is vitally important in film and theater
while being relatively straightforward to control, we sought to develop an
intelligent light control system for entertainment and media production using
wireless sensor networks.
1.2
STATEMENT OF THE PROBLEM
There is a need to develop a wireless
sensor network device to enable easy and smooth communication across Africa’s
busiest city, Lagos. With the city
estimated to have over 2 million businesses, there is a need to implement this
device. Once you look beyond the publicity, however, you quickly see that most
businesses are struggling. The wireless sensor network will help businesses to
grow in communication and networking aspect, increase sales and cut unnecessary
expenditures in advertising their businesses on digital platforms. Others
include: Fraudulent
act of some customer/workers, accessing the organizational data/information
unauthorized, sensitive nature of bank data/information, Increase in crime in
our society and valuable or costly items in bank. The need arise for the
development of computerized Wireless sensor network to eliminate such problems.
1.3 PURPOSE OF
STUDY
The main purpose of
this project is to design a Wireless sensor network that will assist in solving
the problems as stated in the statement of problems.
1.4 AIMS AND
OBJECTIVES
This project will have the following
aims and objectives:
Detecting security violations
Re-creating security incidents
To disallow unauthorized users
To safeguard the organizational
data/information
To computerized the organizational
security
To enhance the organizational
security