atcassignment_javagridsim

7/26/2019 ATCAssignment_JAVAGridSim

1/39

Design and implementation of avirtual organization in Grid

Computing environment:Implementation of Air TracControl (ATC) system

1


2/39

Tale of Contents1. Introduction!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! "

2. ATC (Air Traffic Control) System!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!#3. Modeling of ATC system!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!#

3.1 Data flow modeling!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!$

. Im!lementation of ATC System!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11

.1 "rid resource and "rid users!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11

.2 Sc#eduling !olicies!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 1"

.3 Statistics!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 1%

. "$I of t#e ATC System!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"&

%eferences!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! "%

&


3/39

1. Introduction

Initial model of Air Traffic Control (ATC) was !ro!osed in 1&'s* w#ere t#e !o!ularity and

demand of t#e system #as increased a lot against t#e security and safety in t#e s+y. Air tra,el #as

-ecome a freuent routine o,er t#e #uman life and t#us in t#is conte/t* ATC system #a,e -ecome

more o,erloaded and strained. A continuous c#ange and im!ro,ement o,er t#e ATC system are

noticed since a decade and t#e reuirements are e,er increasing* w#ere t#e initial ATC system are

restricted to limited functionalities as t#ere are only few air crafts flying. Due to t#e increased

,olume of air traffic* res!ecti,e controlling mec#anism got am!le !riority and t#e main o-0ecti,e

of ATC systems is to reduce t#e #uman errors and a,oid unsafe met#odologies o,er t#e

traditional systems. T#us to reduce to t#e air traffic and a,iation accidents* a fully automatic and

so!#isticated ATC system is always reuired. Most of t#e todays Air Traffic Control (ATC)

systems is to maintain an aircraft se!aration mec#anism automatically and t#us im!ose t#e

reuired orderly and safe traffic flow against t#e wide num-er of aircraft safety guidelines. A

ty!ical ATC system is res!onsi-le to #andle ,ast num-er !eo!le* networ+ and eui!ment and

t#us a com!le/ design and im!lementation is always reuired (am* 23).

A ty!ical ATC can -e designed and simulated using many tools* still t#e uality !lays t#e ,ital

role in t#is conte/t and !resimulation or im!lementation tas+s li+e modeling* data flow analysis*

acti,ity analysis and software de,elo!ment met#odology #as t#e to! !riority. Main o-0ecti,e of

t#e current system is to design and im!lement a ty!ical ATC system using "ridSim and a,a

!rogramming language and to accom!lis# a sim!le scenario is considered and is as e/!lained.

4ot# t#e resource and sc#edule modeling is done o,er t#e current researc# against t#e demands

of distri-uted and !arallel com!uting needs for ,irtuali5ation of t#e mac#ines and t#e

corres!onding resource en,ironments. 6ey acti,ities of t#e ATC system im!lementation li+e !re

flig#t* ta+eoff* descent* enroute* landing and a!!roac# are considered o,er t#e current system*

w#ere t#e communication among t#ese acti,ities are modeled using t#e $M7 standards (8all*

2). A!!lication will -e de,elo!ed using t#e a,a code* w#ere a ric# gra!#ical user interface

("$I) is de,elo!ed wit# t#e reuired classes* su-classes* met#ods and functionalities as well.

"


4/39

Detailed e/!lanation to t#e ATC system and t#e modeling done to design and im!lement t#e

reuired system are as e/!lained.

2. ATC (Air Traffic Control) System

Air Traffic Control (ATC) can -e defined as t#e ty!ical ser,ice !ro,ided -y t#e -ase ground

controller and is used to !ass t#e directions and guidelines to t#e aircrafts in t#e air and on t#e

ground. As mentioned due to t#e increased traffic and ,olume of aircrafts* role of ATC #a,e

-ecome crucial* w#ere t#e entire system can -e analy5ed at !rimary and secondary le,el -ased

on t#e tas+s in,ol,ed o,er t#e control o!erations. 9rimary tas+ of a ty!ical ATC system is

considered to ena-le t#e controller to +ee! t#e aircraft at a safe distance -ot# from t#e #ori5ontal

and ,ertical !oint of reference and t#e secondary tas+ is to ensure t#e seuence or orderly traffic

flow -ased on t#e information s#ared wit# t#e !ilots w#ic# is in turn gat#ered from weat#er

ad,isors* radar ad,isors* na,igation information -ase and flig#t guidelines (4rown* 2&).

T#ere was lot of #istoric -ac+ground and many ,ersions and models of ATC were releases and

still t#e common goal resides t#e same. Irres!ecti,e of num-er of solutions !ro!osed to design

and im!lement t#e ATC system* still t#e sco!e of de,elo!ing new model is o!en and t#us t#e

main aim of t#e current researc# is to model* design and im!lement t#e ATC system using ty!ical

software modeling* data-ase modeling and "ridSim and a,a simulations. "ridSim is used for

simulation of ATC system as it !ro,ides wide range of functionalities and #eterogeneous classes*

a!!lications* resources* users and resource -ro+ers and sc#edulers (Murray* 23). Single and

multi!le administrati,e tas+s are also ena-led wit# t#e "ridSim simulation and t#us ,ariant

a!!lications can -e de,elo!ed o,er t#e "rid and 9arallel com!uting en,ironment. Software* user

interface and data modeling for t#e reuired ATC system is de,elo!ed and discussed in t#e -elow

section.

3. Modeling of ATC system

#


5/39

As mentioned modeling a ty!ical ATC (Air Traffic Control) system* includes t#e design of data

flow modeling* user interface modeling and -usiness logic modeling. To model t#e -usiness

logic and user interface standards $M7 can -e used and t#e o,erall flow of t#e ATC system and

t#e res!ecti,e a!!lications can -e re!resented using t#e use cases* seuence diagrams* acti,ity

and conte/t diagrams (Meyn* 21). Data flow modeling can -e done using D:Ds* w#ere t#e

res!ecti,e modeling is done from t#e le,el to t#e detailed 7e,el n modeling and t#e res!ecti,e

re!resentations are as gi,en -elow

3.1 Data flow modeling

9rior to model t#e reuired ATC system* it is always reuired to consider t#e +ey elements of t#e

system and t#ey are discussed in t#is section. In general Air Traffic Control is com!osed of

,arious com!onents or elements w#ic# includes communication systems* na,igation systems*

radios* com!uters* radars and ot#er im!ortant instruments t#at guide t#e entire !rocess of aircraft

flying. Air Traffic controllers are well trained to #andle t#e entire ATC system and can monitor

t#e ground le,el acti,ities -ased on t#e information o-tained against t#e s!eed and location of

eac# and e,ery aircraft. Main as!ect considered in t#is conte/t is t#at* controller can guide t#e

aircraft against eit#er t#ey s#ould come ,ertically or #ori5ontally or too close to eac# ot#er*

w#ere t#e additional safety conditions in terms of landing or ta+eoff are also im!osed -y t#e

controller (4auer* 211).

As t#e main goal of t#e ATC system is to reduce t#e ris+s associated wit# t#e collisions of

aircrafts against num-er of increased aircrafts t#ey can fly safely simultaneously at t#e same

time. T#us -y considering all t#ese as!ects into account* four im!ortant elements are identified

o,er t#e data flow modeling for t#e current ATC system and t#ey are as listed -elow

4asic set of rules t#at guide t#e flying of t#e aircraft for t#e !ilot w#o fly t#e aircraft in

t#e air

Second im!ortant element is to set t#e reuired magnitude and multitude for t#e

res!ecti,e na,igation system w#ic# can #andle t#e entire instrumentation and landing

system

$


6/39

T#ird element is to surface di,ision of air!ort and t#e air s!ace against ,arious control

areas. ;t#er im!ortant elements considered in t#is le,el also include landing* ta+eoff and

aircraft trac+ing

:ourt# element is esta-lis#ing t#e communication among t#e controllerscontrollers*

!ilotcontrollers and t#e res!ecti,e eui!ment t#at is in,ol,ed o,er t#e communication

(%a-ner* 2').

A%TCC (Air %oute Traffic Control Center) is one of t#e largest com!onents o,er t#e airs!ace

system and in general a ty!ical A%TCC can co,er u! to t#ousands of suare miles and a ty!ical

geogra!#ical co,erage sna!s#ot of A%TCC is as s#own -elow

Fig 3.1.1: ARTCC Geographical Coverage (Rabner, 2006)

T#us -ased on t#e +ey reuirements and elements identified o,er t#e ATC system* now t#e

reuired ATC Data flow modeling is done. In general D:D can -e considered as an im!ortant

tec#niue to s#ow and analy5e t#e transformation of in!ut data to out!ut ,ia a seuence of

functional transformations o,er t#e system -oundaries and t#us considered as !ostulated systems

'


7/39

as well. D:D modeled for t#e current ATC system will #old t#e +ey information and t#ey are as

listed -elow

Data storage location

Data flow among t#e data o-0ects


8/39

Fig 3.1.2: ATC Level 0 F

7e,el D:D as s#own in t#e a-o,e figure it is clear t#at* #ig# le,el data entities* connections

and relations are analy5ed at t#is le,el. As a ty!ical ATC system is com!le/ to analy5e* only one

entity is s#own* w#ere t#e 9ilot entity is used to dis!lay o,erall ATC controller and data storeinformation. 9ilot of t#e system can record t#e flig#t information and it includes flig#t !lans and

t#e destination air!orts. :lig#t !lan will -e ena-led -y t#e controller and t#e res!ecti,e

information will -e trac+ed and stored across a file. =eat#er u!dates will -e gat#ered and stored

o,er a se!arate file and t#us can -e used !rior or during t#e aircraft flying. $sing t#e tac+

num-er a ty!ical trans!onder code will -e generated and t#us in t#e emergency cases !ilots can

send a reuest to t#e nearest T%AC;> (Terminal %adar A!!roac# Control) system. ;nce t#e

trac+ order u!date is recei,ed at t#e T%AC;> end* any c#anges in t#e order will -e u!dated and

t#us -etter safety can -e ensured. 9ilot can also im!ose alternati,e flig#t !lan -ased on t#e order

of t#e trac+ing !lan and t#e trac+ num-er (C#en* 2?).

Level 1 DFD

Detailed e/!lanation to t#e data flow of t#e ATC system is gi,en in t#is section and all t#e

!rocesses s#own in t#e 7e,el D:D are ela-orated at 7e,el 1 D:D. ATC system generating t#e

reuired flig#t !lan w#ic# will include t#e data li+e aircraft ID* ground s!eed* re!orted altitude

and assigned altitude against t#e flig#t information a,aila-le. 4ot# t#e destination and de!arture

air!ort information is also trac+ed at t#is le,el and if t#ere are any air!ort transits t#en t#e flig#t

!lan will -e u!dated accordingly suc# t#at city of t#e air!ort will -e u!dated (


9/39

Fig 3.1.3: Level 1 ATC F

Level 2 DFD

Muc# detailed e/!lanation to t#e data o-0ect* data flow and transformation of all t#e entities

identified are gi,en in t#e le,el 2 D:D of ATC system.


10/39

also model o,er t#e le,el 2 D:D of t#e !ro!osed ATC system* w#ic# is used to e/actly trac+ t#e

!rediction as!ects of t#e flig#t information. :iltering !rocess is also modeled at t#e le,el 2 D:D

and t#us t#e modern ATC systems wit#in a s!ecific range will -e filtered -ased on t#e res!ecti,e

range ,alues and t#us t#e monitoring of t#e controller will -e efficient against traffic analysis and

t#e res!ecti,e !rocesses are s#own in t#e -elow le,el 2 D:D of ATC system ("re,ing* 212)

Fig 3.1.!: Level 2 F o" ATC #$#%e&

:rom t#e a-o,e le,el 2 D:D of t#e !ro!osed ATC system it is clear t#at* many detailed !rocesses

are identified and t#e flow among t#em is also s#own.

1*


11/39

. Im!lementation of ATC System

As mentioned at t#e design le,el and -ased on t#e D:D modeling of t#e !ro!osed ATC system* a

com!le/ simulation model is de,elo!ed using "ridSim and a,a and t#e corres!onding code is

as gi,en -elow

.1 "rid resource and "rid users

!ac+age atc@

im!ort 0a,a.awt.@

im!ort 0a,a.awt.e,ent.@

im!ort 0a,a/.swing.@

B

aut#or ;9C

B

!u-lic class TrailCom!onent e/tends 7a-el

!ri,ate int !os/@

!ri,ate int !osy@

11


12/39

B Creates a new instance of Com!onentTest B

!u-lic TrailCom!onent(int /* int y)

!os/ E /@ !osy E y@

F

!u-lic int get9osG()

return !os/@

F

!u-lic int get9os()

return !osy@

F

!u-lic ,oid set9osG(int /)

!os/E/@

F

!u-lic ,oid set9os(int y)

!osyEy@

1&


13/39

F

!u-lic ,oid !aint("ra!#ics g)

"ra!#ics2D g2d E ("ra!#ics2D)g@

g2d.setColor(Color.7I"8TH"%A)@

g2d.draw%ect(** * )@

g2d.dis!ose()@

F

F

.2 Sc#eduling !olicies

!ac+age atc@

im!ort 0a,a.awt.@


B

aut#or ;9C

1"


14/39

B

!u-lic class Main

!ri,ate static AtcScreen atcscreen@

!ri,ate static :rame frame@

B Creates a new instance of Main B

!u-lic Main()

F

!ri,ate static ,oid createAndS#ow"$I()

BBMa+e sure we #a,e nice window decorations.

:rame.setDefault7oo+And:eelDecorated(true)@

BBCreate and set u! t#e window.

frame E new :rame(JATC simulatorJ)@

frame.setDefaultClose;!eration(:rame.HC7;S


15/39

BBatcscreen.setSi5e(3*3)@

BBframe.!ac+()@

frame.setKisi-le(true)@

F

B

!aram args t#e command line arguments

B

!u-lic static ,oid main(StringL args)

BBSc#edule a 0o- for t#e e,entdis!atc#ing t#readN

BBcreating and s#owing t#is a!!licationOs "$I.

0a,a/.swing.Swing$tilities.in,o+e7ater(new %unna-le()

!u-lic ,oid run()

createAndS#ow"$I()@

F

F)@

Air9lane a!1 E new Air9lane(Ja1J* * * 1* * J-ogus1J* 2* 2* 2* 1)@

1$


16/39

Air9lane a!2 E new Air9lane(Ja2J* * * 1* 1* J-ogus2J* 2* 3* 2* 1)@

a!1.SetClearAlt(1)@

a!1.SetClear8eading(1)@

a!1.SetClearS!eed(P)@

try

T#read.slee!(2)@

F

catc#(


17/39

T#read.slee!()@

F

catc#(


18/39

!u-lic class Air9lane

B !lane s!ecs B

!ri,ate String callsign@ BB tail num-er

!ri,ate int clim-rate@ BB feet !er second

!ri,ate int turnrate@ BB degree !er second

B clearance B

!ri,ate int clH#eading@ BB degrees

!ri,ate int clHalt@ BB feet

!ri,ate String clHdirect@ BB

!ri,ate int clHs!eed@ BB +nots

B current B

!ri,ate int cuH#eading@ BB degrees

!ri,ate int cuHalt@ BB feet

!ri,ate int cuHs!eed@ BB +nots

!ri,ate dou-le cuHs!eedH!i/@ BB s!eed in !i/els

!ri,ate int !os/@

!ri,ate int !osy@

!ri,ate int accel@ BB +nots !er second

!ri,ate int deccel@ BB +nots !er second

1


19/39

!ri,ate long IterTimeStam!@ BB time stam! of last iteration in seconds

!u-lic 7a-elCom!onent a!7a-el@

!u-lic TrailCom!onentL trailarray E new TrailCom!onentL@

B Creates a new instance of Air9lane B

!u-lic Air9lane( String callHsign* int clim-Hrate* int turnHrate* int #eading*

int alt* String direct* int s!eed* int !osH/* int !osHy * int accelHrate)

cuH#eading E clH#eading E #eading@

cuHalt E clHalt E alt@

cuHs!eed E clHs!eed E s!eed@

cuHs!eedH!i/E cuHs!eed.1@

clHdirect E direct@

callsign E callHsign@

clim-rate E clim-Hrate@

turnrate E turnHrate@

accel E accelHrate@

!os/ E !osH/@

!osy E !osHy@

IterTimeStam! E System.currentTimeMillis() B 1@

1


20/39

a!7a-el E new 7a-elCom!onent(t#is)@

trailarrayL E new TrailCom!onent(!os/*!osy)@

trailarrayL1 E new TrailCom!onent(!os/*!osy)@



F

!u-lic ,oid SetClear8eading(int #eading)

clH#eading E #eading@

F

!u-lic ,oid SetClearAlt(int alt)

clHalt E alt@

F

!u-lic ,oid SetClearDirect(String fi/)

&*


21/39

clHdirect E fi/@

F

!u-lic ,oid SetClearS!eed(int s!eed)

clHs!eed E s!eed@

F

!u-lic ,oid 9lane9rocess()

BB get time

BB com!are time wit# !re,ious !rocess iteration

long TimeDiff E System.currentTimeMillis() B 1 IterTimeStam!@

BB -oundary c#ec+. R3' and

if(clH#eadingR3')

clH#eading E3'@

F

if(clH#eading)

clH#eading E3'@

F

&1


22/39

BB calculate #eading

if (clH#eading QE cuH#eading)

if(cuH#eading R clH#eading)

if((cuH#eading clH#eading) E 1?) BB turn left

int delta E (int)TimeDiff turnrate@

if (delta R (cuH#eading clH#eading))

delta E cuH#eading clH#eading@

F

cuH#eading E cuH#eading delta@

F

else BB turn rig#t


if (delta R (cuH#eading clH#eading))

delta E cuH#eading clH#eading@

F


F

&&


23/39

F

else

if((clH#eading cuH#eading) E 1?) BB turn rig#t


if (delta R (clH#eading cuH#eading))

delta E clH#eading cuH#eading@

F


F

else BB turn left


if (delta R (clH#eading cuH#eading))

delta E clH#eading cuH#eading@

F


F

F

if(cuH#eadingR3')

&"


24/39

cuH#eading E3'@

F

if(cuH#eading)

cuH#eading E3'@

F

F

BB calculate alt

if (clHalt QE cuHalt)

BBSystem.out.!rintln(Jad0usting alt -y J (int)TimeDiff clim-rate)@

if (clHalt R cuHalt)

cuHalt E cuHalt (int)TimeDiff clim-rate@

BBc#ec+ for o,ers#oot

if (clHalt cuHalt)

cuHalt E clHalt@

F

else


25/39

cuHalt E cuHalt (int)TimeDiff clim-rate@

BB c#ec+ for o,ers#oot

if (clHalt R cuHalt)

cuHalt E clHalt@

F

F

BB calculate s!eed

if (clHs!eed QE cuHs!eed)

BBSystem.out.!rintln(Jad0usting accel -y J (int)TimeDiff accel)@

if (clHs!eed R cuHs!eed)

cuHs!eed E cuHs!eed (int)TimeDiff accel@

BBc#ec+ for o,ers#oot

if (clHs!eed cuHs!eed)

cuHs!eed E clHs!eed@

F

else

cuHs!eed E cuHs!eed (int)TimeDiff accel@

&$


26/39

BB c#ec+ for o,ers#oot

if (clHs!eed R cuHs!eed)

cuHs!eed E clHs!eed@

F

cuHs!eedH!i/ E cuHs!eed .1@

F

for(int iE2@ iRE@ i)

trailarrayLi1.set9osG(trailarrayLi.get9osG())@

trailarrayLi1.set9os(trailarrayLi.get9os())@

F

trailarrayL.set9osG(!os/)@

trailarrayL.set9os(!osy)@

BB calculate !os / and y

BBget angle wit# / a/is

int tem!#eading@

if (cuH#eading 2P RE )

&'


27/39

tem!#eading E cuH#eading 2P@

BB 2nd uadrant

dou-le deltaHy E@

dou-le deltaH/ E@

deltaHy E cuHs!eedH!i/ 0a,a.lang.Mat#.sin(0a,a.lang.Mat#.to%adians(tem!#eading))@

deltaH/ E cuHs!eedH!i/ 0a,a.lang.Mat#.cos(0a,a.lang.Mat#.to%adians(tem!#eading))@

!os/EdeltaH/@

!osyEdeltaHy@

F

else if (cuH#eading 1? RE)

tem!#eading E 2P cuH#eading@

BB 3rd uadrant

dou-le deltaHy E@

dou-le deltaH/ E@



!os/EdeltaH/@

!osyEdeltaHy@

&%


28/39

F

else if (cuH#eading & RE )

tem!#eading E cuH#eading &@

BB t# uadrant

dou-le deltaHy E@

dou-le deltaH/ E@

deltaHy E 0a,a.lang.Mat#.sin(0a,a.lang.Mat#.to%adians(tem!#eading))@

deltaH/ E 0a,a.lang.Mat#.cos(0a,a.lang.Mat#.to%adians(tem!#eading))@

deltaHy E cuHs!eedH!i/@

deltaH/ E cuHs!eedH!i/@

!os/EdeltaH/@

!osyEdeltaHy@

F

else

BB 1st uadrant

tem!#eading E & cuH#eading@

&


29/39

dou-le deltaHy E@

dou-le deltaH/ E@



!os/EdeltaH/@

!osyEdeltaHy@

F

IterTimeStam! E System.currentTimeMillis() B 1@

F

!u-lic ,oid !rint9lane()

System.out.!rintln(Jcurrent s!eed E JcuHs!eed J cleared to JclHs!eed)@

System.out.!rintln(Jcurrent alt E JcuHalt J cleared to JclHalt)@

System.out.!rintln(Jcurrent #eading E JcuH#eading J cleared to JclH#eading)@

System.out.!rintln(JJ

System.currentTimeMillis() B 1)@

F

&


30/39

!u-lic int get9osG()

return !os/@

F

!u-lic int get9os()

return !osy@

F

!u-lic String getCallSign()

return callsign@

F

!u-lic int getCu8eading()

return cuH#eading@

F

!u-lic int getCl8eading()

return clH#eading@

F

!u-lic int getCuAlt()

"*


31/39

return cuHalt@

F

!u-lic int getClAlt()

return clHalt@

F

!u-lic int getCuS!eed()

return cuHs!eed@

F

!u-lic int getClS!eed()

return clHs!eed@

F

B

!ri,ate String callsign@ BB tail num-er

!ri,ate int clim-rate@ BB feet !er second

"1


32/39

!ri,ate int turnrate@ BB degree !er second

!ri,ate int clH#eading@ BB degrees

!ri,ate int clHalt@ BB feet

!ri,ate String clHdirect@ BB

!ri,ate int clHs!eed@ BB +nots

!ri,ate int cuH#eading@ BB degrees

!ri,ate int cuHalt@ BB feet

!ri,ate int cuHs!eed@ BB +nots

!ri,ate int !os/@

!ri,ate int !osy@

!ri,ate int accel@ BB +nots !er second

!ri,ate int deccel@ BB +nots !er second

B

F

. "$I of t#e ATC System

"&


33/39

!ac+age atc@

im!ort 0a,a.awt.@


im!ort 0a,a.util.@

B

aut#or ;9C

B

!u-lic class AtcScreen e/tends 9anel

BB Create t#e list

0a,a.util.7istAir9laneR !lanelist@

!u-lic Air9lane a! E null@

B Creates new form AtcScreen B

!u-lic AtcScreen()

""


34/39

!lanelist E new Array7ist()@ BB 7ist im!lemented as growa-le array

set7ayout( null )@

F

!u-lic ,oid add!lane(Air9lane air!lane)

BB add !lane to a list for !aint

!lanelist.add(air!lane)@

add(air!lane.a!7a-el)@

air!lane.a!7a-el.set7ocation(air!lane.get9osG()* air!lane.get9os())@

air!lane.a!7a-el.setSi5e(P*)@

for(int iE@ i@ i)

add(air!lane.trailarrayLi)@

air!lane.trailarrayLi.set7ocation(air!lane.trailarrayLi.get9osG()*air!lane.trailarrayLi.get

9os())@

air!lane.trailarrayLi.setSi5e(P*P)@

F

"#


35/39

F

!u-lic ,oid u!date7a-el7ocation(Air9lane air!lane)

air!lane.a!7a-el.set7ocation(air!lane.get9osG()* air!lane.get9os())@

for(int iE@ i@ i)

air!lane.trailarrayLi.set7ocation(air!lane.trailarrayLi.get9osG()*air!lane.trailarrayLi.get

9os())@

F

F

!u-lic ,oid u!date()

IteratorAir9laneR it E !lanelist.iterator()@

w#ile (it.#as>e/t())

Air9lane a! E it.ne/t()@

a!.9lane9rocess()@

u!date7a-el7ocation(a!)@

"$


36/39

F

F

F

4elow are some of t#e im!ortant sna!s#ots of t#e !ro!osed ATC system

"'


37/39

"%


38/39

%eferences

4auer* . (211). Identification and Modeling of Conte/ts for Different Information

Scenarios in Air Traffic.Eurocontrol Experimental Centre Bretigny,41(2)* 1&.

4rown* T. (2&). >etwor+ing Issues for Small $nmanned Aircraft Systems.Journal of

Intelligent and Robotic Systems,1(3)* 'P&.

C#en* 4. (2?). A %e,iew of t#e A!!lications of Agent Tec#nology in Traffic and

Trans!ortation Systems.Intelligent Transportation Systems, IEEE Transactions,11(2)*

1P31


39/39

8all* A. (2). $sing :ormal Met#ods to De,elo! an ATC Information

System.Industrial!Strengt' (ormal )et'ods in *ractice (ormal +pproac'es to

Computing and Information Tec'nology,(2)* ?&&3.

Meyn* 7. (21). 4uild of t#e Airs!ace Conce!t

atcassignment_javagridsim

Documents