skripsie topics 2013

8/10/2019 Skripsie Topics 2013

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SKRIPSIE TOPICS 2013

SKRIPSIEONDERWERPE 2013

Department of Electrical & Electronic EngineeringUniversity of Stellenbosch


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PROJEK-488 (E&E AND E&E+RW)

PROJEK KEUSES / PROJECT CHOICES

Instruksies/ instructions : U sal per epos in kennis gestel word hoe om u skripsiekeuses in te dien. You will be notified

by email how to submit your project choices. U moet 5 alternatiewe projekkeuses maak, in voorkeur volgorde. You must make 5

alternative choices, in order of preference.

U mag nie meer as drie keuses by dieselfde dosent maak nie. You may not choose more thanthree projects with the same supervisor.

As daar 'n projek is wat, in samewerking met die betrokke dosent, v r!" vir u gereserveeris en dit ook so aangedui is in die lys van projekkeuses, dan hoef u geen verdere keuses temaak nie. If you have proposed your own project with a study leader in advance and this isindicated among the list of topics, you do not need to select any further projects.

N t!s/ Notes #

Projekte word toegeken met inagneming van die studente se keuses sowel as dieresulterende belading van die personeel. it is dus belangrik dat u e$ke van die 5 keuses watu maak goed oorweeg. !ra die betrokke dosente indien u oor enige onderwerpe onseker is.

Projects are allocated taking into account the students choices as well as the workload ofeach supervisor. It is important that you consider each of your choices carefully. Ask thestaff in uestion if you have uestions regarding their projects.

ie finale toekennings sal op die departement se offisiele kenningsgewingsbord sowel asbuite kantoor "#$% verskyn. U sal per e&pos in kennis gestel word wanneer dit gebeur. !hefinal allocations will be posted on the "epartment#s official notice board, as well as outsideoffice $%&'. You will be notified by email when this happens.

U moet nog voor die unie( ulie vakansie met u skripsie&studieleier 'n afspraak maak. Youmust make an appointment to see your study leader before the (une)(uly holiday.


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%O PU'ERS AND %ON'RO ROUP

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A*-9# Re!$isti2 Drivin Si,u$!t r v:

)his is a *ontinuation of a previous proje*t. "+isting hardware platform s fun*tionality should bee+panded to add more driver *ontrols, i.e indi*ators(lights swit*hes. Added *ontrol inputs must be addedto e+isting P- interfa*e. oftware simulator must be re&evaluated and improved or repla*ed. imulationsoftware must be e+pandable to allow low&level modifi*ation. -onfigurable driving ha/ards must beadded to simulation. 0easurement of driver responses to ha/ards from inputs to P-. 1ood hardware and

espe*ially software design skills would be benefi*ial

A*-:# Aut ,!te. 27!r in " A'PAI it7 An.r i. !se. user inter"!2e Automated )ele&presen*e Platform for Artifi*ial 2ntelligen*e 3A)PA24 is an implementation from aprevious design whi*h fo*ussed on the me*hani*al aspe*ts and drive train. )he ne+t step is to augmentthe system by adding Android based *ontrol of the A2 platform. )his proje*t will fo*us on the automati*do*king and *harging of A)PA2 using a *onta*tless *ost effe*tive *harging solution. ensors to aidautomated *harging must be added and integrated into the e+isting system. Android *ontrol interfa*e3hardware and software4 must be developed(implemented to aid in testing new platform fun*tionality.)he *onta*tless *harge system must also be designed and developed using off the shelf *omponents.)his proje*t re uires a *andidate with multi&dis*iplinary interest in high&level software design, digitaldesign, a little me*hani*al design and espe*ially power system design.

A*-;# D !rk $ in unit

A og bark logging unit must be developed that must indi*ate adheren*e to or violation of muni*ipalbylaws regulating e+*essive noise pollution. )he unit should *ount how many times and for how longany spe*ifi* dog barks within pre&defined time windows. A *ompressed log of the data must be kept forsubse uent downloading. Audio of the longest *ontinuous barking events within a given window periodshould also be stored. 1ood embedded system design skills as well as good embedded programming3-(-664 skills would be benefi*ial.

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*-9# @irtue$e 7 n.

it is al deur navorsing onder huisrowers vasgestel dat klein honde wat in die huis slaap van grootwaarde is. =ntwerp, bou en demonstreer > virtuele hond wat op verskeie sensors reageer. ie tipe blafen die posisie waaruit die klank kom moet intelligent aangepas word om die virtualiteit van die hond teverbloem

*-:# 'ut r r. vir Reken!!rste$es$s :4=

=ntwerp > tutorbord vir rekenaarstelsels ?@5. !erwerker: 9enesas 0$ -. ie tutorbord moet minstensvoorsiening maak vir al die huidige 9 ?@5 praktika en moet via die eBa programmeerder en eie U ;&poort programmeerbaar wees.

*-;# *r!i$$e se$

=ntwerp > ;raille sel plus aandryfelektronika wat geskik is om in > rekenaarmuis te monteer. 0aakvoorsiening vir B punte 3in plaas van die gebruiklike punte4. 2ndien meganiese penne gebruik wordmoet die krag waarmee die penne uitgestoot word, voldoende wees om die gebruiker toe te laat omsy(haar vinger op die sel te hou sonder dat dit die sel se werking beCnvloed. =ndersoek ook alternatiewestimulasie metodes. ;etroubaarheid en koste van vervaardiging op klein skaal 3byvoorbeeld $ skaal wat geskik is vir die weeg van perlemoen. ie skaal en elektronika moet geskik wees om in> hoogs korrosiewe omgewing te funksioneer. kaaldata moet via > @B5 netwerk na > rekenaar oorgedraword.

*-=# Dr!!.$ se e7eernet erk vir in.ustri $e e ruik

8isiese netwerke wat industriDle stelsels verbind, is moeilik om te installeer en skep heelwatinstandhoudingsprobleme. raadlose netwerke is egter dikwels onbetroubaar in > industriDle omgewing.=ndersoek huidige draadlose tegnieke en vergelyk die koste van > 3voldoende4 betroubare draadlosenetwerk met > fisiese netwerk. =ntwerp, bou en demonstreer > draadlose netwerk geskik virindustriDle gebruik

*-?# E$ektriese !"k$! hoDkoste item vir > klein pakhuis. =ntwerp, bou en toets > elektriese afklapper. 0aak gebruik van > @B5netwerk om met die afklapper te kommunikeer

J*-9# Re, te e!t7er st!ti n ( 'N)

esign an ele*troni* unit to measure and report temperature, relative humidity, wind speed, et*. )hemeasurements must be transmitted to an e+isting server using an e+isting *ellular modem, whi*h is has aserial interfa*e and uses e+tended A) *ommands. )he student will be re uired to build the sensor blo*k,the monitoring and sampling ele*troni*s, as well as the serial interfa*e. )he weather station results mustbe reported on the 0A9) platform, whi*h provides *ustomisable online data visualisation.)he proje*t is sponsored by 0)E and )rintel, and a budget is available for e uipment.


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J*-:# Re, te 8-27!nne$ irri !ti n 2 ntr $$er ( 'N)

esign an ele*troni* unit to remotely *ontrol and monitor ele*troni* solenoid valves with pre&programmed *y*les. )he system must be *ontrolled from )rintel s online 0A9) platform. )heele*troni* unit will interfa*e to an e+isting *ellular modem, whi*h is has a serial interfa*e and usese+tended A) *ommands. )he status of the system 3*urrent *onsumption, valve state, et*, 4 must bereported to the 0A9) platform, whi*h provides *ustomisable online data visualisation.

)he proje*t is sponsored by 0)E and )rintel, and a budget is available for e uipment

J*-;# @!ri! $e ess! e S5ste, (@ S) .is


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predefined set of waypoints. )he *orre*t operation and performan*e of the *ontrol design must beverified in simulation and demonstrated with a # perspe*tive *omputer graphi*s visualisation. 2fsu**essful, the system may be implemented and verified on a real bi*y*le.

JAE-4# >ee. !2k % ntr $ " ! ' -ABis Pen.u$u, De, nstr!t r

A feedba*k *ontrol system for a two&a+is pendulum demonstrator must be designed, implemented andverified.)he demonstrator *onsists of a swinging pendulum with a propellor at the end. )he pendulumswings freely about a hinge, and is mounted on a platform that *an rotate freely about the verti*al a+is.)he speed of the propellor *an be *ontrolled to *hange the magnitude of the thrust and it *an be rotatedto *hange the dire*tion of the thrust. )he propellor must be used to *ontrol both the angle of thependulum relative to the verti*al a+is, and the a/imuth angle of the platform on whi*h it stands. )he two&a+is pendulum demonstrator must be *onstru*ted, and the feedba*k *ontrol system must be pra*ti*allydemonstrated.

JAE-=# ! neti2 evit!ti n usin >ee. !2k % ntr $

A feedba*k *ontrol system that uses an ele*tromagnet to levitate a metal ball bearing must be designed,implemented and verified. A mathemati*al model for the dynami*s of the magneti* levitation systemmust be derived or sour*ed from literature. )he dynami*s must be analysed to propose an appropriatefeedba*k *ontrol ar*hite*ture that a*tuates the *urrent in the ele*tromagnet using feedba*k from a sensorthat measures the ball bearing's verti*al position. 8eedba*k *ontrol loops must be designed to levitate theball bearing. A pra*ti*al demonstrator must be *onstru*ted and the *orre*t operation must bedemonstrated.

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'J-4# AR Dr ne Cu!.2


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W S-=# !ntr5 2r!ne s in 2 ntr $ tut r

A small lab&si/e model of a gantry *rane must be developed for student pra*ti*als. esign and build asimple me*hani*al gantry model. A servo motor drive for the *rane *art with position and rotationsensor feedba*k will be re uired. evelop a mi*ro*ontroller interfa*e with analog inputs and outputsfor abada to enable testing of new *rane *ontrollers in 0atlab( imulink. As an alternative a stand&alone mode of operation must implement an autonomous swing damping *ontroller within the

mi*ro*ontroller *ode with an e+ternal position referen*e input for the *art.Inowledge areas:$. Plant modelling?. is*rete *ontroller design#. J- design and programming

W S-?# ?-D > eB!< .

A &legged tewart platform or 7e+apod a*tuator *an be used to move a platform along # translationdire*tions and around # rotation a+es. )his type of a*tuator is used for flight simulator *apsules, asstabilised platforms for ships, et*. esign and build a simple lab model by using 9- servos todemonstrate the movements possible on a 7e+apod. evelop a mi*ro*ontroller for *ontrolling the servos, using a 0em ense Eano&20U as an input steering devi*e. )he steering logi* 3inverse

kinemati*s4 *an be implemented in 0atlab( imulink. 8irst investigate the possibility to also implementthis logi* inside the mi*ro*ontroller *ode.Inowledge areas:$. An interest in & o8 platform kinemati*s?. J- design and programming

%@D-9# St! i$is!ti n !n. , ti n 2 ntr $ " ! < -sti2k r t

)his proje*t involves the design, instrumentation and *ontrol of a one&legged spring&loaded hoppingrobot. ;y atta*hing a spring to the robot leg, energy *an slowly be added to the system by *hanging theverti*al *entre of mass, *ausing the robot to boun*e at first, and then to jump. )he robot *an bestabilised in one dire*tion 3for simpli*ity, the robot LfootM *an be made broad enough that stabilisation isonly re uired in one dire*tion4 by *hanging its hori/ontal *entre of mass. )he primary proje*t goal is tostabilise the robot while jumpingN a se*ondary goal is to move the robot forward or ba*kward.

)he student will need to generate and *hoose from a number of me*hani*al design *on*epts, set up amodel of the system, *hoose appropriate a*tuators and sensors, a mi*ro*ontroller and power supply andintegrate them into a working system. 2n addition, the student needs to design and implement a stateestimator and *ontroller to stabilise the system, and implement a simple motion planning algorithm. 8ordata analysis, implementation of a wireless link will also be ne*essary.

)his is uite a *hallenging topi* and is suitable for a student with a strong interest in *ontrol systems androboti*s. 7e(she will en*ounter interesting *ontrol problems, amongst whi*h are *ontrol of an invertedpendulum and *ontrol of a highly resonant system. =ther skills re uired in*lude modelling of a dynami*system, basi* me*hani*al design, ele*troni* design and embedded programming.

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)his is uite a *hallenging topi* and is suitable for a student with a strong interest in roboti*s. )hestudent will be re uired to familiarise him(herself with a*ousti* ranging and A0, of whi*h the latterre uires a good understanding of probability theory and state estimation.

%@D-;# Aut ,!te. !$$ 2!t27er

)his proje*t involves the design and implementation of an a*tuated mini basketball basket that

automati*ally *at*hes a ball thrown by a person. )he ball will be per*eived using two *ameras mountedat right angles to ea*h other, its traje*tory predi*ted and inter*epted by the basket that has two degrees offreedom 3a*tuated, for e+ample, using stepper motors4.

)he student will need to syn*hronise the *ameras, *onne*t them to a P-, *alibrate them, and sense theball using a *omputer vision library su*h as =pen-!. )he ball will need to be tra*ked and its traje*torypredi*ted using state estimation te*hni ues su*h as the Ialman filter. )he a*tuation of the basket,in*luding an interfa*e to the P-, needs to be designed and implemented.

)his proje*t is suitable for a student with an interest in *omputer vision, as well as *ontrol systems. )hestudent will be re uired to master basi* *omputer vision *on*epts, state estimation and predi*tion, aswell as motor *ontrol.

%@D-4# Aut ,!te. ,!3e s $ver

)his proje*t involves the design and implementation of a system that automati*ally plans and guides arolling ball through a ma/e. )he ma/e should be a tiltable flat surfa*e of whi*h the orientation is*ontrolled from a P- by means of two a*tuators 3e.g. - motors4. A *amera will be mounted above thema/e, whi*h will be used to build a map of the ma/e as well as sense the ball lo*ation within the ma/e.

)he student will need to do a me*hani*al design of the supporting stru*ture, *amera mounting, tiltablesurfa*e and a*tuators. )he *amera will need to be *alibrated and the ball sensed using a *omputer visionlibrary su*h as =pen-!. )he will need to be tra*ked using an estimator su*h as the Ialman filter. Ano**upan*y grid map of the ma/e should be built using *omputer vision and mapping te*hni ues. Aplanning algorithm should be implemented to plan a *ollision&free path from the initial ball position tothe goal position, taking the dynami*s of the rolling ball into a**ount. astly, a tilt a*tuator *ontroller

should be designed to steer the ball along the planned path.

)his topi* is very *hallenging and is suitable for a student with a strong interest in roboti*s and *ontrol.)he student will be re uired to familiarise him(herself with *omputer vision te*hni ues and planningalgorithms. =ther skills re uired in*lude modelling of a me*hani*al system, basi* me*hani*al design,motor *ontrol, ele*troni* design 3for the a*tuator&P- interfa*e4, state estimation, *ontroller design and*omputer programming.

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ENER ROUP

ENER IE ROEP

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N -:# Per" r,!n2e !n!$5sis " ! 99KW in.u2ti n ,!27ine

)he *ontinuous development of mi*ro generation units has seen the *age rotor indu*tion ma*hine being*ourted as an easily available generator. )he advantages of this ma*hine as a grid&*onne*ted generatorover the syn*hronous generator in*lude its robustness and the fa*t that it is almost maintenan*e free."ffi*ien*y data of the indu*tion generator are often not provided by manufa*turers. 2n this proje*t,effi*ien*y data of an indu*tion ma*hine 3for both motor mode and generator mode4 will be obtainedthrough simulation 38inite "lement4 and e+perimental measurements. )he behaviour of the ma*hine in

generator mode and motor mode will be studied through the appli*ation of 2""" standards.N -;# Desi n " ! . u $e "e. in.u2ti n ener!t r .e, nstr!ti n


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JK-;# u kern P in. ener!t r nt er< numeriese eindige element sagte ware pakket wat gebruik kan word om onder andereelektromagnetiese berekeninge van elektriese masjiene te doen. !isual& o* is > sagte ware pakket metoptimerings algoritmes wat gebruik kan word om ontwerpe te optimeer. !isual& o* is beskikbaar in die8akulteit 2ngenieurswese. it is moontlik om deur middel van > Python program 0A1 met !isual& o*te koppel, sodat op so > manier elektriese masjiene optimum ontwerp kan ontwerp. 0et hierdie metode wil ons kyk na die optimum ontwerp van lugkern permanente magneet 3P04

windgenerators, en hierdie ontwerpe vergelyk met analitiese optimum ontwerpe. ie projek fokus opkleinskaal 3# F kK4 windgenerators, waar, onder andere, berekeninge en eksperimentele metings vanbestaande generators met mekaar vergelyk sal word. ie skripsie gee in besonder ondervinding in diegebruik van optimerings algoritmes en eindige element sagte ware, wat belangrik is in die breDingenieurswese.

JK-4# P in.uksie in. ener!t r

2n heelwat ingenieurstoepassings word van werwelstroomkoppelings 3Qeddy *urrent *ouplingsQ4gebruik gemaak wat meganiesroterende stelsels koppel sonder fisiese meganiese koppeling. 7ierdiekoppeling kan ook gebruik word in windgenerator meganiese stelsels om > QsagterQ koppeling tussen diewindturbine en die elektriese windgenerator te hR. aar word van permanente magnete 3P04 en >geleierskyf of kortgesluite spoele gebruik gemaak, en dan deur induksiewerking word draaimomentopgewek. =ns noem dit dus > P0 induksiegenerator. 7ierdie skripsie vorm deel van > nuut ontwikkeldetipe windgenerator by tellenbos*h Universiteit. 7ierdie projek is in opvolg van > vorige skripsie, waar weer gekyk word na analise en nuwe ontwerpvan so > generator. aar sal onder andere van 0A1 eindige element sagte ware gebruik gemaak word.> Ilein prototipe sal gebou en getoets word in die laboratorium deur gebruik te maak van > reedsbestaande stelsel.

JK-=# Re$ukt!nsie sin27r n ener!t r ,et ve$. ikke$in

2n die soeke na beter(goedkoper windgeneratorstelsels word die reluktansie sin*hroongenerator 39 14met veldwikkeling op die rotor as opsie genoem. ie skripsie kyk na die ontwikkeling van > baie klein3$ kK4 9 1 met > veldwikkeling op die rotor wat via borsels en sleepringe aan > 1 bron verbind kanword. aar is reeds > beskikbare reluktansie rotor waarop > rotor veldwikkeling geplaas kan word. ieskripsie sal kyk na die ontwerp van die veldwikkeling met behulp van ? 0A1 eindige element

analise, en sal dan saam met eksperimentele meting die vermoD 3in terme van effektiwiteit enarbeidsfaktor4 van die 9 1 evalueer met of sonder veldstroom. =m die toetse te vereenvoudig sal die9 1 direk op die 5< 7/ netwerk gekoppel en geDvalueer word. ;asiese sin*hroonmasjien analise saldeel vorm van die skripsie.

JK-?# Dr5 in se$ektr niese ,setter en e7eer v!n .ie e$ektriese !!n.r5", t r vir .ie E-% rs!

)ans is die "lektriese 0asjien aboratorium besig met die ontwikkeling van > elektriese aandryfstelselvir die battery gevoerde elektriese =pel -orsa, genaamd die "&-orsa. aar bestaan reeds >waterverkoelde 21;) drywing omsetter wat as platvorm sal dien waarvandaan gewerk kan word. > Pbeheerprogram moet ontwikkel word om die elektriese reluktansie aandryfmotor vir die voertuig tebeheer. ie beheerstelsel maak gebruik van posisie en stroom terugvoering. ie skripsie sal die stelsel asgeheel op > toetsbank prakties evalueer.

JK- # *!tter5

)ans kyk die "lektriese 0asjien aboratorium na die ontwikkeling van > batterygevoerde elektriesetrekker. ie geval van trekkers wat vir wingerdboerdery gebruik word, word ondersoek. ie belangrikeaspek wat ondersoek moet word, is die vermoD en ontwerp van > battery pak vir die trekker. ie skripsiesal die tipiese werksure, ry&siklus en energie benodig van > wingerdtrekker bepaal. !anuit hierdie datasal optimum litium&ioon en lood&suur battery pakke ontwerp moet word vir beste resultate in terme vanwerksure en gewig. ie skripsie sal in samewerking met Universiteit Kes&Iaapland gedoen word.Praktiese metings op > litium&ioon battery pak sal in die laboratorium gedoen word om die tegnologie teevalueer. ie skripsie moet uiteindelik die haalbaarheid van > battery pak vir elektriese wingerdtrekkersbepaal.

PJR-9# S,!rt ,e - S,!rt ri. Inter"!2e " r S,!rt De,!n. Si.e !n! e,ent

8or this proje*t, a 7ome Area Eetwork 37AE4 should be designed with an main ele*troni* *ontroller30"-4 unit that *ommuni*ates with a least one mart light swit*h and one mart power outlet usingeither Power ine -ommuni*ations 3P -4, e.g. 7omePlugS 1reen P7T)0 31P4 or wireless


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*ommuni*ations, e.g. ig;eeS. )he 0"- and 7AE should be designed su*h, that it *ould later easilybe e+tended to *ontrol a mart light swit*h with dimming *apabilities, a mart geyser's temperaturesetting, the fre uen*y setting of a mart swimming pool pump inverter, *harge rate of an ele*tri*vehi*le's 3"!4 mart *harger, et*. whi*h re uires more than just =E(=88 *ontrol. Although the 0"-and 7AE would be ideally suited for 7ome Automation, it is also re uired that the 0"- *ommuni*ateswith )rintel's 0A9) platform on the )rinity -loud using a *ellular modem in order to *onne*t to amart 1rid. )his would allow the mart 1rid to perform mart emand ide 0anagement 3 04 onthe mart 7ome espe*ially when the grid is under severe stress and all non&essential, high energy loads,

needs to be swit*hed off. 8or bonus marks, the power *onsumption of ea*h mart devi*e needs to bemeasured and this telemetry data be transmitted to the 0A9) platform via the *ellular modem in orderfor the mart 1rid to de*ide how to apply mart 0. )he proje*t is sponsored by 0)E and )rintel,and a budget is available for e uipment.

PJR:# 48@ i-I n *!tter5 !n! e,ent S5ste, " r t7e S7e$$ E2 !r!t7 n

8or this proje*t, the first prototype of a @B! i&2on ;attery 0anagement ystem 3;0 4 needs to bedesigned for the hell "*o 0arathon ?PJR4# Deve$


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should be investigated whether the same information *ould also be obtained by measuring only the*urrent drawn by the pump.

J S-9# S nv $ er e7eere$ektr nik! vir " t -v $t!Fese en ter,iese s nener ie ,settin

7ierdie projek het ten doel die ontwerp en bou van > beheerder vir sonvolgers en die praktiesetoepassing daarvan op > bestaande twee&as sonvolger vir gebruik in onder andere hernubare energienavorsing. ie beheerder moet die son kan volg op grond van berekende sonposisie, gemete sonposisie

of > kombinasie daarvan. !erder moet dit die vermoD hR om die huidige en geskiedkundige toestand tekan kommunikeer en instruksies te kan ontvang via > standaard seriDle kommunikasie koppelvlak. iestelsel moet onder veldtoestande gedemonstreer word. 7ierdie projek is > voorloper vir die toepassingvan > soortgelyke beheerstrategie op die veel groter tirling enjin(skottel kombinasie waarvan diemeganiese struktuur nou vanuit die oorhoofse loopgang op die dak by 0eganiese 2ngenieurswese gesienkan word. Iandidate wat in hierdie onderwerp belangstel kan daarom ook oorweeg om verder aan tegaan met nagraadse studie oor die onderwerp.

J S-:# E$e2tri2it5 s,!rt ,eter inter"!2e it7 2e$$u$!r 2 ,,s

An e+isting smart meter 3"lster4 has a serial port through whi*h it *an be *ontrolled and monitored.8irmware needs to be written for an e+isting modem(A!9 platform to interfa*e with the meter, and alsoto interfa*e to the *ellular modem, whi*h has a serial interfa*e and uses e+tended A) *ommands. )hestatus of the system must be reported to and *ontrolled from the 0A9) platform, whi*h provides*ustomisable online data visualisation. )he proje*t is firmware intensive. )he proje*t is sponsored by0)E and )rintel, and a budget is available for e uipment.

J S-;# Gn K$ein :4/ isse$ri ter/ !tter5/s n baie eenvoudige metode, maar die resultaat is nie altyd sogoed nie. 7ierdie projek het ten doel die ontwerp van > elektroniese beheerder van >vervaardigingsaanleg vir stringgeleiers. 3 ie meganika is reeds gebou.4 ie kandidaat gaan blootstellingkry aan digitale F en analoog stroombaanontwerp en mikroverwerker programmering en > bietjiemasjienaandrywing.


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J S-?# @e$.k!,er!

As deel van > inisiatief om die probleemdier situasie aan te spreek waarmee kleinveeboere te kampe het,is daar tans > navorsingspoging by die einverwerkingsgroep om algoritmes te ontwikkel(te leer sodatrooijakkalse en rooikatte erken kan word. 7ierdie projek het ten doel om > veldkamerastelsel metgepaste verwerkingskapasiteit te ontwikkel sodat die algoritmes in die veld getoets kan word. ie projekbehels die identifisering van gepaste kamera tegnologie en verwerkerplatforms, die suksesvollesamevoeging daarvan en programmering ten einde die werking van die stelsel in die geheel te

demonstreer. 3 ie programmering behels nie noodwendig die implementering van dieerkenningsalgoritmes nie.4 Aandag moet ook gegee word aan kragvoorsiening en > gepaste wyse ominligting na buite te kommunikeer. !aardighede wat deur die kandidaat aangeleer gaan word sluit inontwerp van mikroelektroniese stelsels, sagteware programmering van mikroverwerker& enkamerastelsels en kommunikasieprotokolle en Fstelsels.

J@-9# W!venis ire$ess s,!rt ri. unit t inter"!2e t e5ser unit

Kavenis provides a short range mesh network trans*eiver set that is low powered and is usedpredominantly for monitoring remote water flow. )his program involves the development of a 1 0gateway that will provide a**ess to the Kavenis network and all the sensors on that network. )hegateway will transmit the information to )rintel s 0A9) platform. evelop firmware to interfa*e aKavenis trans*eiver with a 1 0 modem through the serial port via e+tended A) *ommands.)he gateway must fa*ilitate the full fun*tionality of the Kavenis mesh network system and must offeradditional support su*h as lo*al storage, s*heduling and intelligent ueing.)he system must be fun*tionally optimised and tested for a residential appli*ation, monitoring variousele*tri*al applian*es su*h as geysers and lights.

J@-:# S,!rt ri. 2 ntr $ s5ste, " r ! resi.enti!$ reti2u$!ti n net rk it7 P@ rene ! $e ener 5 in"ee.1

9esidential reti*ulation in*reasingly involves a *ombination of renewable sour*es su*h as photovoltai*panels in addition to the supply from the utility. )his proje*t involves the development of a grid *ontrolsystem for optimal s*heduling of load and storage operations in a residential grid with a utility infeedtogether with a photovoltai* supply. An optimi/ation strategy must be developed in 0atlab usingpattern estimation prin*iples to determine optimum s*heduling of loads su*h as a geyser and swimmingpool pump, whilst allowing for optimum storage during sunlight hours for loads su*h as lighting and an

alarm system during periods when the P! supply is unavailable.A suitable hardware platform must be identified for implementing a stand&alone *ontroller to interfa*ewith standard P! inverter and *harging te*hnogies based on the theoreti*al solutions developed in0atlab. uitable remote swit*hing te*hnologies must be identified and implemented for the *ontrolledloads. )he system must be implemented, tested and evaluated for a real residential grid.

J@-;# I,! e !n!$53er " r insu$!t r 75.r


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)he system is ultimately intended for publi* deployment on the *ampus with the view to *reateawareness of energy *onsumption and improve energy effi*ien*y. )he proje*t re uires a fairba*kground in database systems and network proto*ols and is a *ontinuation of a previous proje*t..

J@ -=# %7!r!2teris!ti n " resi.enti!$ $ !. t < $ ies usin s5ste, i.enti"i2!ti n !n.

9eliable and affordable load *omposition data is an essential re uirement for determining the s*ope forenergy savings through the appli*ation of energy effi*ien*y te*hnologies. )he obje*tive of this proje*t isthe development and evaluation of a load *hara*terisation algorithm in 0atlab for residential and*ommer*ial ele*tri*al load profiles measured at a single supply point. 7igh resolution energy*onsumption profiles, whi*h must be logged as part of the proje*t are used as the dominant input data.Appropriate logging instrumentation is available for obtaining field data. )he *hara*terisation strategymust be developed using digital signal pro*essing tools su*h as system identifi*ation, parameterestimation and patten re*ognition algorithms and may also re uire waveform analysis. )he modellingtopology must make provision for the energy *onsumption versus supply voltage *hara*teristi*s of theload. 2t is re uired that the performan*e of the methodology is evaluated for representative s*enarioswith pra*ti*al load data. )he major re uirement for this proje*t is a good ba*kground in signalpro*essing

J@-?# Deve$ !n A


20/38

*apability and high effi*ien*y during syn*hronous operationZ 3b4 7ow to *ompute the performan*e*hara*teristi*s by using a *ombination of analyti*al and field analysisZ 3*4 Kould the proposed P0motor offer true performan*e benefits when *ompared with *onventional indu*tion motorZ9esear*h method: )his proje*t is to optimally design, *onstru*t and e+perimentally evaluate a novelP0 motor for *ooling fan appli*ations. )he e+perimental investigation will fo*us spe*ifi*ally on the

steady&state performan*e, starting and syn*hronisation *apability. )he out*ome of this proje*t willoutline the advantages and disadvantages of the proposed P0 motor and evaluate the true energyeffi*ien*y benefits of this new type of motor.

RJW-;# Desi n !n. Ev!$u!ti n " ! N ve$ ! neti2 e!r

2n wind power industry, gearbo+ failures a**ount for the largest amount of downtime, maintenan*e andloss of power generation. =ver B


21/38


22/38

E E%'RONI%S ANDE E%'RO A NE'I%S ROUP

E EK'RONIKA EN E EK'RO A NE'IKA

ROEP

St!"" ,e, ers#

* t7! # ,, t7!0sun1!213! D1*1 D!vi.s n # .!vi.s n0sun1!213! J1*1 .e S !r.t # .es !r.t0sun1!213!

.e @i$$iers D # ..v0sun1!213! > urie %J # 2" urie0sun1!213!

e5er P #


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*O-9# 'ree-2 tree .iskretis!sie vir eie-, .us !n!$ise ,et .ie EE

ie eindige element metode 3""04 word algemeen gebruik vir die numeriese oplossing van P ! s. iedoel van die projek is om n P ! op te los wat "0 velde oor n ? gebied beskryf. ie ""0 behels diediskrete verteenwoordiging van die oplossings veld in terme van eenvoudige funksies oor n LmeshM vanelemente. 0et elke funksie is n koDffisiDnt geassosieer, wat tegerlykertyd opgelos word via n matriksvergelyking. ie P ! moet hanteer word as n veralgemeende eiewaarde probleem, om die resonante

frekwensies en modusse van mikrogolf holtes te bereken. 7ierdie analise vind toepassings binnemikrogolf ingenieurswese. ie onlangs voorgestelde Qtree&*otreeQ funksies moet ondersoek word, omdie probleem meer effektief op te los. 7ierdie tegnieke word gebruik in kommersiDle "0 simulasieprogrammatuur.

7ierdie projek is wiskundig intensief. n terk belangstelling in "0 is nodig. ie projek kan as goeiebasis dien vir nagraadse studie in numeriese "0.

*O-:# ' ee.e- r.e str!$in s rensv r !!r.e vir .ie :D vekt r ve$. EE

ie eindige element metode 3""04 word algemeen gebruik vir die numeriese oplossing van P ! s. iedoel van die projek is om n P ! op te los wat "0 velde oor n ? gebied beskryf. ie ""0 behels diediskrete verteenwoordiging van die oplossings veld in terme van eenvoudige funksies oor n LmeshM vanelemente. 0et elke funksie is n koDffisiDnt geassosieer, wat tegerlykertyd opgelos word via n matriksvergelyking. ie stralings grensvoorwaarde 31!4 is n kritiese aspek wat akkuraatheid bepaal waarmeestraling na oneindigheid in ag geneem word. 8isies eksakte 1!s lei tot baie hoDr berekenings kostes asbenaderde 1eid te ondersoek. 7ierdie tegnieke word gebruik in kommersiDle "0 simulasieprogrammatuur.

7ierdie projek is wiskundig intensief. n terk belangstelling in "0 is nodig. ie projek kan as goeiebasis dien vir nagraadse studie in numeriese "0.

*O-;# *erekenin v!n ,! neetve$.e e !seer < str ,e in su


24/38

*O-=# Ont er< en ev!$ueer !ntenne

7ierdie projek is wiskundig intensief. n terk belangstelling in "0 en sagteware ontwikkeling is nodig.ie projek kan as goeie basis dien vir nagraadse studie in numeriese "0.

D*D-9# Re.u2in $ 2k! e n 2entre-"e. .is7 !ntenn!s

)his proje*t aims to investigate design options for redu*ing blo*kage in *entre&fed dish antenna designs,espe*ially strut blo*kage whi*h results in asymmetri*al sidelobe stru*ture. Amongst other appli*ations,it is appli*able to radio&teles*ope dishes su*h as IA)&%. =ptions *onsidered will in*lude alternate strutmaterials and shaping of the struts. ue to time&s*ale and *ost *onstraints, the proje*t will fo*us on

*omputer simulation, primarily using pa*kages su*h as 8"I= and 19A P. 78 @$@ would be preferablebut not essential F however, "0#@@ is essential.

D*D-:# 2 st r!.i ,eter

)here is a real need for a low *ost radiometer that *ould be used with domesti* satellite )! dishes toprovide a simple radio teles*ope for tea*hing purposes. 3A radiometer is a devi*e for measuring theradiant flu+ 3power4 of ele*tromagneti* radiation.4 -ommer*ial&off&the&shelf *omponents will be used asfar as possible. )his proje*t in*ludes *ollaboration with 7A9)&9A=. )his proje*t re uires 78@$@.

D*D-;# Desi n " !ntenn! r!n e

)his proje*t aims to produ*e a design to e+tend the lowest operating fre uen*y of the U antenna range

3the 5th floor ane*hoi* *hamber4. )his will involve *hara*teri/ing the e+isiting *hamber, studying theproperties of absorbing material, understanding the re uirements of the proposed spheri*al near&fields*anner, and proposing a suitable re&design. "+tending the operating range of the *hamber is parti*ularlyimportant given the &band operation of IA)&% and 0eerIA). 78 @$@ would be preferable but notessential F however, "0#@@ is essential.

D*D-4# e!sure,ent te27niHues " r r!.i te$es2


25/38


26/38

DD@-;# Se2t r!$ P!t27 Antenn! Arr!5

A *ommon problem in 9A A9 systems is to produ*e an antenna pattern with G< degree *overage andsharp roll off outside the beam. )his proje*t will investigate different array *onfigurations to besta*hieve the desired pattern *overage, and implement the best solution in mi*rostrip pat*h antennate*hnology.

DD@-4# Di""r!2ti n De, nstr!t r;uild a demonstrator system to visually show the wave interpretation results of the *lassi*al single slitand double slit e+periments. )he system should operate in the mi*rowave fre uen*y range.

DD@-=# S n!r Dist!n2e e!sure,ent 39eserved for ;randt Ilopper, $5%


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*ir*uits have been studied, in*luding *entre&of&gravity, geneti* algorithm, parti*le swarm, simulatedannealing and other heuristi* methods. 7owever, these methods re uire thousands of transientsimulations with pi*e&based engines, and are mostly poorly&*oded in&house tools. Khat is absent is alight weight *ross&platform *ompatible tool with whi*h to optimi/e *ir*uit s*hemati*s using a range ofabove&mentioned methods. Tour job is to develop a *onsole appli*ation 3no 1U2 re uired4 usingadvan*ed programming te*hni ues 3piping between optimi/er and pi*e engine to redu*e disk a*tivity,multi*ore deployment of simulations, low&level *ode to speed up *al*ulations, et*.4 to allow *ir*uitoptimi/ation on any Kindows, inu+ or 0a* platform. )he preferred language is -. )his is not an app.

%J>-4# P er s-?# A!n$5n-$!ser


28/38

] n 9adioprotokol moet ontwerp word om die beheerrekenaar toe te laat om al die pistooltjies temonitor, maar terselfdertyd elke skoot so gou as moontlik vanaf n pistool na die beheerrekenaarkommunikeer, en elke trefskoot vanaf die slagofferpistool na die beheerrekenaar kommunikeer.] ie radioprotokol moet voorsiening maak vir datapakkieverlies sonder om skote, trefskote of anderdata te verloor.] ie beheerrekenaar moet met die beheerstasies kommunikeer om te verseker dat geen data van diepistole verloor of veelvuldige male aangeteken word nie.] ie sagteware op die beheerrekenaar moet met die pistole kommunikeer om n speletjie te beheer:

Ammunisie moet getel en beheer word, pistole moet kan LherlaaiM, spelers se virtuele gesondheid moetgemonitor word, posisie moet bepaal word om te bepaal of spelers die spelsone verlaat 3en om dieafstand van trefskote te meet4, L*apture the flagM&tipe speletjies moet beheer word, stastiek oor skotegetref teenoor afgevuur moet gehou word, ens.] ie spelarea moet grafies aangedui word, met inligting oor onlangse skote en trefslae.] n Aantal speletjie&opsies moet ontwikkel word, wat spanspel, L*apture the flagM, ens. moontlik maak.] ie beheerrekenaar moet oor n netwerk met ander rekenaars kommunikeer om spelstatistieke opverskeie plekke te vertoon, en luidsprekers te beheer om pistoolskote, trefskote, herlaaiklanke, leD skote,ens. as klankgrepe te speel net vanaf die naaste luidsprekers aan die betrokke speller 3dit is teonekonomies om hierdie klanke op die spelers se oorpakke te genereer4.] Ammunisie moet virtueel geplaas kan word 3spelers kan dit kry wanneer die 1P &posisie binne ngrypradius vanaf die ammunisie is] pelstatistiek, posisie, ens. kan na spelers se tablette of slimfone gestuur word via die internet

P -9# - !n. ,ikr $" "i$ter

7ierdie filter moet 'n plaaslik ontwikkelde 9A A9 in die ?.#&?.@ 17/ band beveilig teen baie sterk;luetooth en Ki8i seine by ?.@517/. ;aie lae insetverlies is 'n vereiste.

P -:# @erste$ !re - !n. $"$eier"i$ter

7ierdie filter moet dinamies verstel kan word om frekwensiebande te definieer vir frekwensie&stap9A A9's. !erandering van die bandwydte en(of senterfrekwensie moet vining geskied, en so min asmoontlik komponente benodig. ie projek is deel van 'n "uropese Unie program.

P -;# - !n. NA ,et r t .in!,iese ereik1

'n Plaaslik ontwikkelde 9A A9 in die ?.#&?.@ 17/ band vereis 'n EA wat groot dinamiese bereikkombineer met lae ruissyfer. 'n =ptimum stelselontwerp word benodig, gevolg deur implementering enmeting.

P -4# G !< W!ve ui.eL >i$ter

7ierdie filter moet van sogenaamde '1ap Kaveguide' gebruik maak om 'n harmonieke filter te skep met'n baie wye stopband vir gebruik op die uittree van hoD&drywing senders, in die B&$?17/ band. ie werkvorm deel van 'n samewerking met -halmers' Universiteit in wede.

P -=# P!r!,eter-ekstr!ksie v!n ek iv!$ente str , !ne

!ir identifisering van probleme in mikrogolfstrukture is dit noodsaaklik om ekwivalente stroombane tekan onttrek vanuit baie beperkte metings. 7ierdie projek moet 'n parameter&ekstraksie algoritmeontwikkel wat vanuit &parameters die onderliggende struktuur kan identifiseer, met waardes, met dieoog op multi&laag strukture.

P -?# R t,!n ens vir ,,- $" sk!n.erin

!ir 'n mm&golf skanderingstelsel, word 'n komponent gesoek om ', wyeband sein op te deel in 'n aantalfrekwensiebande, deur gebruik te maak van ruimtelike golwe. o 'n toestel staan bekend as 'n 9otmanlens. 7ierdie projek behels die ontwerp, bou en toets van so 'n lens by $


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%R-9# A Si,


30/38

W-:# De, E. ert nMs * ,er

n emonstrasiemodel word benodig vir $ste jaars "lektrotegniek vir n "dgerton s ;oomer. it moetn baie netjiese en volledige demo wees wat nie net vir $stejaars nie, maar ook vir skole en opedaegebruik kan word. o paar van die vereistes vir die ontwerp en finale produk:^ ie uiteindelike demo moet baie netjies wees, kleurvol(aantreklik met komponente duidelik gemerk^ it moet veilig wees, aangesien relatief groot strome betrokke sal wees^ it gaan n gelykrigter ontwerp benodig, n kapasitorbank, en n spoel. ie gemete stroom en

berekende krag moet op n digitale skerm 3klein - 4 vertoon kan word, so n klein beheerder kan ookgebruik word.^ ie boomer moet n paar verskillende plate kan skiet op so n manier dat dit veilig is, dogindrukwekkend vir studente en skoliere.

W-;# A i.e !n. ,ni-.ire2ti n!$ !ntenn! " r R>I , nit rin

)he uare Iilometre Array 3 IA4 Afri*a proje*t re uires a wideband omni&dire*tional antenna whi*h*an be used either in the fre uen*y domain 38 4 or the time domain 3) 4. )he antenna will mainly beused for radio fre uen*y interferen*e 39824 monitoring, and for dire*tion finding as well. )he proje*twill re uire the design of a well&mat*hed antenna using 8"I=, as well as the *onstru*tion and*hara*terisation of the antenna above a groundplane. 0easurements will be done in an ane*hoi**hamber and on an open area test site 3=A) 4 in both 8 and ) .


31/38

SI NA PRO%ESSIN ROUP

SEIN@ERWERKIN ROEP

St!"" ,e, ers#

.u Pree3 JA # .u


32/38

AE-9# Event Or.erin " r


33/38

AE-4# D5n!,i2 $ !. !$!n2in in


34/38

super&peer using a *ombination of simulation 3using the =mEet66 pa*kages4 as well as integration intoa P?P 00!" based on 0ine-raft. )he *andidate gain e+perien*e in *omputer networks, peer&to&peernetworks, and network simulation pa*kages su*h as =mEet66 and =ver im.

'RN-9# Au.i !se. 2$ se-


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'RN-=# Pi 5 ur 2 ,,!n.

Use a 9aspberry Pi to build a voi*e&a*tivated *ontroller for household devi*es, su*h as lighting. )heproje*t involved the development of an automati* spee*h re*ognition 3A 94 system that *an be hostedby the 9Pi. )his A 9 system should be set up as a word&spotter, to allow it to *ontinually s*an for*ommands and keywords. !arious options shoud be *onsidered with a view to optimising the tradeoffbetween false a**epts 3the 9Pi thought you said to dim the lights, but you didn't4 and false reje*ts 3yousaid to dim the lights but the 9Pi didn't hear you4. )he proje*t will en*ompass the use of open&sour*e

spee*h tools in a linu+&only environment. )he student should therefore be *omfortable in su*h anenvironment, and be an espe*ially keen programmer. )here is also a haradware *omponent in thedevelopment of the means by whi*h the 9Pi will, for e+ample, dim the lights. )o this end the studentshould be able to design the appropriate interfa*e ele*troni*s.

'RN-?# u$ti-2 $ ur . t-,!triB .is


36/38

J@R-4# R!.i -n .us vir Ln .ui,r5-v ertui

toepassing, en die toets van die stelsel se doeltreffendheid deur die kwantitatief met handgeskeduleerdeoplossings te vergelyk. ie toepassing behoort basiese simulasie& en visualiseringsfunksionaliteit in tesluit waarmee die toepaslikheid van 'n oplossing beoordeel kan word.


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1evorderde oorwegings wat in ag geneem kan word om die oplossing verder te verfyn 3indien tyd dittoelaat4, sluit die outomatiese leer van pendelpatrone en modellering van topografie in.

RW-9# A.7 2 R utin S5ste, " r St 2k P siti n 'r!2kin !n. '7e"t Preventi n 39eserved for Ple 9ou+ F $


38/38

A *ommuni*ations sytem for su*h a network should be pervasive, effi*ient and relatively ine+pensive. 2tshould also have reasonable *overage. 2t is therefore proposed that a network based on the @## 07/2 0 band be investigated, to be deployed in a self addressing adho* mode. )his will alleviate networksetup overhead. Eetwork routing to a *entral area server will take pla*e via multiple paths, to ensurereliability and low laten*y. )he network should on the *onsumer side interfa*e with one of the newstandards based 7AE's while providing demonstrable output on the power provider side.

)he proje*t will entail:

$. 2nvestigate suitable 2 0 band 98 hardware for integration into a *onsumer *ommuni*ations node.)he 98 portion is not to be designed and developed, but must be pro*ured off the shelf?. esign and develop a *onsumer *ommuni*ations node, interfa*ed to a generi* 7omePlugS 7omeArea Eetwork 37AE4 developed under another topi*. )he node *ir*uitry must interfa*e to the 7AE and98 *omms module.#. esign all other hardware eg. Power supply, pro*essor, interfa*ing *ir*uitry, et*.@. 2nvestigate adho* network routing prin*iples most suitable for the KAE appli*ation5. imulate strategy in 0atlab to verify. 2mplement routing strategy in *onsumer nodes%. evelop basi* P- based host for node network data displayB. ystem evaluation and testingG. 9eport and presentation

RW-;# *ee7ive Distur !n2e 'e$e,etr5 S5ste,

A bee farmer has great problems with theft and vandalism of his hives. 7e needs to obtain early warningif the hives are physi*ally disturbed and should obtain a photo re*ord of the *ulprit. )he system must beautonomous, unobtrusive and *ompa*t. -urrent damage e+perien*ed by farmers run into manythousands of 9ands.A low power *ontroller should be designed with a *amera and a**ellerometers as inputs. )he *ontrollersshould be self&addressing. )he units must be pla*ed on, or in a safe pla*e inside the hive and whenmovement is dete*ted a photo of the *ulprit should be written to &9A0 and a message transmitted per1P9 . )he unit will have to be robust and weather resistant.

)he proje*t will entail:$. 2nvestigate suitable 1P9 modems

?. esign and develop a mi*ro *ontroller based platform *apable of handling the inputs and data storage)he node *ir*uitry must interfa*e with the 1P9 modem and *amera.#. esign all other hardware eg. Power supply, pro*essor, interfa*ing *ir*uitry, et*.@. 2nvestigate network routing prin*iples to utilise unit in a *luster where a few hives are within shortdistan*e5. 2nvestigate low power *onsumption operation. ystem evaluation and testing%. 9eport and presentation

END O> IS'

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