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Trådlöst signalflaggsystem för fotbollsdomare

Cimic, Emin LU and Sahiti, Besnik LU (2012) EEM820 20122
Department of Biomedical Engineering
Abstract
The purpose of this master thesis was to develop a football referee paging flag system. A paging flag system is an appliance to facilitate the assessment of the game and to improve the communication between the referee and the assistant referees. The assistant referees are each equipped with a paging flag and the referee is equipped with a receiver, which vibrates when activated from a button push located on the flags. The system consists of two radio transmitters and a receiver implemented in two flags and one plastic box. Mode of procedure to build the system was to construct circuit boards through etching and then solder the components onto it. The essential parts of the system are the transmitter and receiver, together with the encoder... (More)
The purpose of this master thesis was to develop a football referee paging flag system. A paging flag system is an appliance to facilitate the assessment of the game and to improve the communication between the referee and the assistant referees. The assistant referees are each equipped with a paging flag and the referee is equipped with a receiver, which vibrates when activated from a button push located on the flags. The system consists of two radio transmitters and a receiver implemented in two flags and one plastic box. Mode of procedure to build the system was to construct circuit boards through etching and then solder the components onto it. The essential parts of the system are the transmitter and receiver, together with the encoder and decoder. The operating frequency for the system was 433 MHz, which is an allowed band for amateur radio. Using the encoder and decoder it is possible to connect up to seven flags to one receiver due to a learn feature. These components also provide security encryption so that no outer sources of interference will interfere. Since the paging system already is being used in the highest divisions in Sweden and internationally, the aim was to examine how the system also could be used by referees in the lower divisions. A market survey was sent out to all of football referees in Skåne (530 persons). The result of the study was that the price for the existing paging system was too high to be considered significant for referees in the lower divisions. The principal conclusion was to examine how economically efficient the development cost of the system would be, so that it would be considered an option by all referees. (Less)
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author
Cimic, Emin LU and Sahiti, Besnik LU
supervisor
organization
course
EEM820 20122
year
type
H2 - Master's Degree (Two Years)
subject
keywords
referee paging flag system, radio communications, antenna theory, digital communication
language
Swedish
additional info
2012-07
id
3634074
date added to LUP
2013-04-18 14:12:41
date last changed
2014-10-08 14:47:31
@misc{3634074,
  abstract     = {The purpose of this master thesis was to develop a football referee paging flag system. A paging flag system is an appliance to facilitate the assessment of the game and to improve the communication between the referee and the assistant referees. The assistant referees are each equipped with a paging flag and the referee is equipped with a receiver, which vibrates when activated from a button push located on the flags. The system consists of two radio transmitters and a receiver implemented in two flags and one plastic box. Mode of procedure to build the system was to construct circuit boards through etching and then solder the components onto it. The essential parts of the system are the transmitter and receiver, together with the encoder and decoder. The operating frequency for the system was 433 MHz, which is an allowed band for amateur radio. Using the encoder and decoder it is possible to connect up to seven flags to one receiver due to a learn feature. These components also provide security encryption so that no outer sources of interference will interfere. Since the paging system already is being used in the highest divisions in Sweden and internationally, the aim was to examine how the system also could be used by referees in the lower divisions. A market survey was sent out to all of football referees in Skåne (530 persons). The result of the study was that the price for the existing paging system was too high to be considered significant for referees in the lower divisions. The principal conclusion was to examine how economically efficient the development cost of the system would be, so that it would be considered an option by all referees.},
  author       = {Cimic, Emin and Sahiti, Besnik},
  keyword      = {referee paging flag system,radio communications,antenna theory,digital communication},
  language     = {swe},
  note         = {Student Paper},
  title        = {Trådlöst signalflaggsystem för fotbollsdomare},
  year         = {2012},
}