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en:abl [2013/08/08 21:37] fluktuaciaen:abl [2013/10/25 20:47] – [__Aviation maps__] kaklik
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 ===== Ground discharge box ===== ===== Ground discharge box =====
  
-The ground balloon network station would consist of compact box containing technology needed to discharge the balloon __sonde__. The device must be able to withstand (in order of several years) the standby mode and wait for the command to release the sonde. +The ground balloon network station would consist of compact box containing technology needed to discharge the balloon sonde. The device must be able to withstand (in order of several years) the standby mode and wait for the command to release the sonde. 
  
        
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   * The roof panels held flexibly by a stretchable strap, ensuring the sealing of the roof ridge.    * The roof panels held flexibly by a stretchable strap, ensuring the sealing of the roof ridge. 
  
-=== __Actuators__ ===+=== Actuators ===
  
-Most of the actuators should be designed with an emphasis on maximal reliability. Therefore, they would probably be springs with __burnable__ plastic fuses (silicon fiber or ribbon burned by a powerful resistor).[[en:nfet4x|NFET4X01B]] module can be used To switch the current to resistors.   +Most of the actuators should be designed with an emphasis on maximal reliability. Therefore, they would probably be springs with burnable plastic fuses (silicon fiber or ribbon burned by a powerful resistor). [[en:nfet4x|NFET4X01B]] module can be used To switch the current to resistors.   
  
 == Pneumatics == == Pneumatics ==
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   * Meteostation [[en:aws|AWS01B]] for measurement of the basic meteorological variables    * Meteostation [[en:aws|AWS01B]] for measurement of the basic meteorological variables 
   * [[en:gps|GPS01A]] - a time synchronisation, an absolute knowledge of the station position, the possibility to generate a DGPS correction   * [[en:gps|GPS01A]] - a time synchronisation, an absolute knowledge of the station position, the possibility to generate a DGPS correction
-  * Balloon __drag__ measurement+  * Balloon lift measurement
   * Gas flow into the balloon (by an [[http://en.wikipedia.org/wiki/Orifice_plate|orifice plate]])   * Gas flow into the balloon (by an [[http://en.wikipedia.org/wiki/Orifice_plate|orifice plate]])
  
-===== Weather balloon =====+===== Probing balloon =====
  
 A non-flying prototype of the balloon will be developed using [[http://www.mlab.cz/Server/GenIndex/GenIndex.php?lang=cs&path=/Modules|MLAB]] modules. A non-flying prototype of the balloon will be developed using [[http://www.mlab.cz/Server/GenIndex/GenIndex.php?lang=cs&path=/Modules|MLAB]] modules.
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   * [[http://en.wikipedia.org/wiki/Lithium_battery|Lithium battery]] (does not generate heat, minimum operating temperature is -60°C)    * [[http://en.wikipedia.org/wiki/Lithium_battery|Lithium battery]] (does not generate heat, minimum operating temperature is -60°C) 
-  * __Magnesium__ battery (generates heat to keep the electronics warm)  +  * Magnesium battery (generates heat to keep the electronics warm)  
-  * [[http://en.wikipedia.org/wiki/Silver-oxide_battery|Stříbro-oxidový článek]] (withstands lower operating temperatures and is environmentally friendly +  * [[http://en.wikipedia.org/wiki/Silver-oxide_battery|Silver-oxide battery]] (withstands lower operating temperatures and is environmentally friendly 
-  * Ideal for use would be [[https://www.youtube.com/watch?feature=player_embedded&v=OtM6XJlynkk|supercapacitors]]+  * An ideal option would be the use of [[https://www.youtube.com/watch?feature=player_embedded&v=OtM6XJlynkk|supercapacitors]]
  
 The solution to the problem of low temperature at higher altitudes could involve the preheating of the balloon at startup. The solution to the problem of low temperature at higher altitudes could involve the preheating of the balloon at startup.
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 The balloon should be of B2 class, that is defined as a free balloon with the volume under 3,25 m^3 and none of the dimensions exceeding 2m when inflated to its maximal size.   The balloon should be of B2 class, that is defined as a free balloon with the volume under 3,25 m^3 and none of the dimensions exceeding 2m when inflated to its maximal size.  
  
-=== Povolení vypuštění ===+=== Launch permission ===
  
-Užitečné zatížení představují předměty materiálykteré by v případě střetu s letadlem mohly způsobit poškození letadla (zejména prskavkysvítící tyčinkylámací světla, LED diody apod.) a jakékoliv zatížení o hmotnosti přesahující 0,1 kg.  +An useful load refers to all the objects and materials that could, in an event of collision with an aircraftcause a damage to the aircraft (especially sparklesglowstics,LEDs etc.) and any load exceeding weigh of 0.1 kg. 
-Vzhledem k této definici bude nutné mít pro provoz balónu povoleníVšechny informace ohledně letu (jako je datumčasmísto vypuštěníužitečné zatížení atp.) musí být zveřejněny v Letecké informační příručce (AIP). Pro vypuštění ve zvláštních případechjako je mimořádné pozorováníje potřeba upozornit prostřednictvím navigační výstrahy formou zprávy NOTAM, která se musí podat minimálně 24 hodin před vzletem balónu.+Due to this definition, a permission must be obtained in order to operate the balloonAll the information concerning the flight (like datetime and place of dischargeuseful loadetc.) has to be published in Aeronautical Information Publication (AIP). In the case of special instanceslike an __unexpected observation__a warning must be issued in the form of a NOTAM noticeat least 24 hours before the balloon's take-off.
  
-=== Materiály ===+=== Materials ===
  
-Balón nesmí být plněn hořlavými výbušnými plyny s výjimkou povolení ÚCL. +The balloon must not be filled with flammable and explosive gases, with the exception of permission issued by CAA ([[http://www.caa.cz/index.php?lang=2]])
-Omezení pro materiál antény ani baterií nejsou definovány.  +Restrictions on the materials used for antennae and batteries are not specified. Such restrictions are not specified for the materials used for the balloon as wellbut when using a balloon with high luminosity or made of materials with high light or radar reflectivity, it must be reported to nearest air traffic control centreA material (a ropea threadconnecting the balloon with the sonde must not tolerate a force exceeding 230N.  
-Materiál balónu také není definovánale při použití balónu o vysoké svítivosti nebo zhotoveného z materiálů o velké světelné nebo radarové odrazivosti musí být oznámeno nejbližšímu stanovišti letových provozních služeb. +
-Materiál (lanoprovázekspojující balón se sondou nesmí vydržet větší sílu než 230N.+
  
-=== Dostup ===+=== Ascent altitude ===
  
-Pro dostup nejsou omezení.+Without limits.
  
-=== Místo vypuštění ===+=== Deployment site ===
  
-Omezení se týká všech ZakázanýchNebezpečných a Omezených prostorůstejně jako dočasně aktivovaných prostorů v době jejich používanís výjimkou kdy tak povolí ÚCL nebo kdy je prostor vyhrazen pro let předmětného balónuProvoz balónu blízko hranic a letišť je problematický, nedoporučuje se.+The restrictions include all ProhibitedRestricted and Dangerous areasas well as temporarily activated areas during their useexcept when a permit has been issued by Civil Aviation Authority or when the area is reserved for the flight of the balloon in questionOperations close to the state borders or airports are problematic and as such are not recommended  
  
 +=== Solving legal problems ===
  
-=== Řešení legislativních problémů === 
  
 +  * To design a safe balloon, that will meet the CAA flight safety requirements.
 +  * To control the ascent and actively prevent a possible collision. (This system could as well simplify the return of the balloon, similar to this video http://www.youtube.com/watch?v=rpBnurznFio ) 
 +  * Autodestruction system activated in the case of impending collision.
 +  
 +===== Network's control system =====
  
-  * Navrhnout bezpečnou sondu, která splní požadavky ÚCL na bezpečnost letu.  +The configuration and the control of the network should be provided by [[cs:programming_tasks&#framework_pro_distribuovane_merici_projekty|an universal framework for distributed measurements]]
-  * Řídit stoupání a aktivně zabránit vzniku kolize. (Takový systém by mohl zároveň zjednodušit návrat sondy podobně jako zde http://www.youtube.com/watch?v=rpBnurznFio )  +
-  * Autodestrukce při hrozící srážce. +
-===== Řídící systém sítě =====+
  
-Konfigurace a řízení sítě by mělo být zajištěno [[cs:programming_tasks&#framework_pro_distribuovane_merici_projekty|univerzálním frameworkem pro distribuovaná měření]].  
  
 +==== Launch Planning ====
  
 +The launch of the balloons must be planned automatically with regard to the effectiveness of the measurement and the air traffic safety as well.
 +
 +=== Aviation maps ===
 +
 +  * [[http://skyvector.com/|SkyVector]]
 +  * [[http://openaviationmap.org/|Open Aviation Map]]
 +  * [[http://lis.rlp.cz/ais_data/aip/data/valid/e6-3.pdf|Aeronautical information service]] - AIP chapter ENR 6.
 +
 +Other maps are mostly scanned versions of originally paper aviation maps and so are not suitable for automatic planning. 
 +
 +===== Documentation =====
 +
 +[[http://www.mlab.cz/Designs/Measuring_instruments/ABL01A/DOC/ABL01A.cs.pdf|The project's summary technical report]]
 +
 +==== Technical documentation ====
 +
 +The project's technical documentation is saved in SVN repository at MLAB: http://svn.mlab.cz/svnmlab/Designs/Measuring_instruments/ABL01A/
 +
 +  svn://svn.mlab.cz/MLAB/Designs/Measuring_instruments/ABL01A/
 +  
 +==== Project management ====
 +
 +For tasks management and supervision of their implementation we use [[http://www.mlab.cz/redmine/| Redmine]]. 
 +
 +Documents and presentations concerning project management are stored here:
 +
 +  svn co https://lynx1.felk.cvut.cz/svn-students/pto/pto-13138-1 svnPTO 
 +  
 +
 +==== Project presentations ====
 +
 +  - [[http://prezi.com/bnhig7zmyoin/automaticky-vypousteny-meteobalon/|Introduction]]
 +  - [[http://prezi.com/8hxyotflpfzt/2-prezentace-abl01a/|First results]]
 +  - [[http://prezi.com/3d4t973s-tk0/iro-automaticky-vypoustec-meteobalonu/|Experimental working prototype]]
 +
 +=== Videos ===
 +
 +  * [[http://youtu.be/yZOg_d113f8|Test of the prototype]]
 +
 +=== Photos ===
 +
 +  * [[https://picasaweb.google.com/109626411951658757207/AutovypoustecMeteobalonuABL01A?noredirect=1|Prototype construction and testing ]]
 +
 +===== Implementation means =====
 +
 +==== People ====
 +
 +The project is carried out by the team of several ČVUT students from Department of Measurement and Department of Cybernetics.
 +
 +
 +  * [[https://usermap.cvut.cz/profile/pomiceva/|Bc. Eva Pomíchalová]]  -  Air and Space Systems 
 +  * [[https://usermap.cvut.cz/profile/kakonjak/|Bc. Jakub Kákona]] -  Air and Space Systems  
 +  * [[https://usermap.cvut.cz/profile/poskozby/|Bc. Zbyněk Poskočil]] - Sensors and measurement
 +  * [[https://usermap.cvut.cz/profile/hanuson1/|Bc. Ondřej Hanuš]] -  Air and Space Systems  
 +  * [[https://usermap.cvut.cz/profile/jichapav/|Bc. Pavel Jícha]] - Cybernetics and Robotics
 +
 +==== Technical support ====
 +
 +Most parts of the project were provided by [[http://www.ust.cz/|Universal Scientific Technologies s.r.o.]] {{ :logo_ust.png?nolink|Universal Scientific Technologies s.r.o.}}
 +
 +Suppliers of the construction equipment:
 +
 +  * [[http://macgyver.sh.cvut.cz/|MacGyver – bastlíři SH]]
 +  * [[http://aerospace.fsik.cvut.cz/?f_lng=en|Department of Aerospace Engineering]]
 +
 +
 +===== References =====
 +
 +  * [[http://portal.chmi.cz/files/portal/docs/meteo/oa/sondaz_PTU_vitr.html|ČHMÚ measurements]].  
 +
 +==== Similar projects ====
 +
 +  - http://projecthorus.org/ http://blog.czanso.com/ http://chab.chytry.info/
 +  - http://www.airshipclub.com/folie.php
 +
 +==== TODO ====
 +
 +  * A sounding rocket could be a future improvement of the project.
 + 
  
en/abl.txt · Last modified: 2017/01/05 18:53 (external edit)