en:abl
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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 | + | The ground balloon network station would consist of compact box containing technology needed to discharge the balloon |
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The ground discharge box is constructed to be able to run under various weather conditions. It has a shape of triangular prism with one side standing on a raised platform and the other two covered with photovoltaic cells supplying energy to the electronics. After the discharge, they can be used to check the correct slide-down of the roof panels. The monitoring of the supplied power during the day also enables to check for the occurrence of solid obstacles in the vicinity of the station. | The ground discharge box is constructed to be able to run under various weather conditions. It has a shape of triangular prism with one side standing on a raised platform and the other two covered with photovoltaic cells supplying energy to the electronics. After the discharge, they can be used to check the correct slide-down of the roof panels. The monitoring of the supplied power during the day also enables to check for the occurrence of solid obstacles in the vicinity of the station. | ||
- | The material used for construction is welded | + | The material used for construction is welded |
* A construction designed to enable the discharge of present-day professional weather balloons. | * A construction designed to enable the discharge of present-day professional weather balloons. | ||
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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__ | + | Most of the actuators should be designed with an emphasis on maximal reliability. Therefore, they would probably be springs with burnable |
== Pneumatics == | == Pneumatics == | ||
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* Meteostation [[en: | * Meteostation [[en: | ||
* [[en: | * [[en: | ||
- | * Balloon | + | * Balloon |
* Gas flow into the balloon (by an [[http:// | * Gas flow into the balloon (by an [[http:// | ||
- | ===== Weather | + | ===== Probing |
A non-flying prototype of the balloon will be developed using [[http:// | A non-flying prototype of the balloon will be developed using [[http:// | ||
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The GPS must by chosen to function correctly at higher altitudes as well.((Limited by the [[http:// | The GPS must by chosen to function correctly at higher altitudes as well.((Limited by the [[http:// | ||
- | === Napájení sondy během letu === | + | === Power supply during the flight |
- | * [[http:// | + | * [[http:// |
- | * Hořčíková baterie | + | * Magnesium battery |
- | * [[http:// | + | * [[http:// |
- | * Ideální by bylo použití | + | * An ideal option would be the use of [[https:// |
+ | The solution to the problem of low temperature at higher altitudes could involve the preheating of the balloon at startup. | ||
- | Řešením problému s nízkou teplotou ve vyšších výškách by mohlo být předehřátí sondy při startu. | + | === Construction |
- | === Konstrukce | + | |
- | * Balón | + | * Balloon |
- | * Možnost dálkového odpojení balónu od sondy (ukončení stoupání) | + | * An option to remotely disconnect the balloon from the sensor |
- | * Prototyp plněný | + | * A prototype filled with [[http://en.wikipedia.org/ |
- | * Splnění požadavků na bezpečnost provozu (letovou, majetkovou a personální) | + | * Meeting the safety requirements |
=== Firmware === | === Firmware === | ||
- | * Záznam dat v gondole balónu | + | * Data records from balloon gondola |
- | === Blokové schéma | + | === Block Diagram |
- | {{:cs:schema_atmega1.png?400|}} | + | {{:en:schema_atmega1_ang.png?400|}} |
- | ==== Legislativní požadavky | + | ==== Legal requirements |
- | Pravidla pro lety volných balónů bez pilota jsou definovány v leteckých předpisech | + | The rules for free unmanned balloon flights are defined in the aviation regulations "L-2 Pravidla |
- | === Kategorie balónu | + | === Balloon Classes |
- | Balón by měl spadat do kategorie | + | 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 | + | An useful load refers to all the objects and materials that could, in an event of a collision with an aircraft, cause a damage to the aircraft |
- | Vzhledem k této definici bude nutné mít pro provoz balónu povolení. Všechny informace ohledně letu (jako je datum, čas, místo vypuštění, užitečné zatížení atp.) musí být zveřejněny v Letecké informační příručce | + | Due to this definition, a permission must be obtained in order to operate the balloon. All the information concerning the flight |
- | === Materiály | + | === Materials |
- | Balón nesmí být plněn hořlavými | + | The balloon must not be filled with flammable and explosive gases, with the exception of a permission issued by CAA ([[http:// |
- | 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 well, but when using a balloon with high luminosity or made of materials with high light or radar reflectivity, |
- | Materiál balónu také není definován, ale 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 | + | |
- | === Dostup | + | === Ascent altitude |
- | Pro dostup nejsou omezení. | + | Without limits. |
- | === Místo vypuštění | + | === Deployment site === |
- | Omezení se týká všech Zakázaných, Nebezpečných a Omezených prostorů, stejně jako dočasně aktivovaných prostorů v době jejich používaní, s výjimkou kdy tak povolí ÚCL nebo kdy je prostor vyhrazen pro let předmětného balónu. Provoz balónu blízko hranic a letišť je problematický, | + | The restrictions include all Prohibited, Restricted and Dangerous areas, as well as temporarily activated areas during their use, except when a permit has been issued by Civil Aviation Authority or when the area is reserved for the flight of the balloon in question. Operations 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:// | ||
+ | * Autodestruction system activated in the case of impending collision. | ||
+ | | ||
+ | ===== Network' | ||
- | * Navrhnout bezpečnou sondu, která splní požadavky ÚCL na bezpečnost letu. | + | The configuration and the control of the network should be provided |
- | * Řídit stoupání a aktivně zabránit vzniku kolize. (Takový systém | + | |
- | * Autodestrukce při hrozící srážce. | + | |
- | ===== Řídící systém sítě ===== | + | |
- | Konfigurace a řízení sítě by mělo být zajištěno [[cs: | ||
+ | ==== 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:// | ||
+ | * [[http:// | ||
+ | * [[http:// | ||
+ | |||
+ | Other maps are mostly scanned versions of originally paper aviation maps and so are not suitable for automatic planning. | ||
+ | |||
+ | ===== Documentation ===== | ||
+ | |||
+ | [[http:// | ||
+ | |||
+ | ==== Technical documentation ==== | ||
+ | |||
+ | The project' | ||
+ | |||
+ | svn:// | ||
+ | | ||
+ | ==== Project management ==== | ||
+ | |||
+ | For tasks management and supervision of their implementation we use [[http:// | ||
+ | |||
+ | Documents and presentations concerning project management are stored here: | ||
+ | |||
+ | svn co https:// | ||
+ | | ||
+ | |||
+ | ==== Project presentations ==== | ||
+ | |||
+ | - [[http:// | ||
+ | - [[http:// | ||
+ | - [[http:// | ||
+ | |||
+ | === Videos === | ||
+ | |||
+ | * [[http:// | ||
+ | |||
+ | === Photos === | ||
+ | |||
+ | * [[https:// | ||
+ | |||
+ | ===== Implementation means ===== | ||
+ | |||
+ | ==== People ==== | ||
+ | |||
+ | The project is carried out by the team of several ČVUT students from Department of Measurement and Department of Cybernetics. | ||
+ | |||
+ | |||
+ | * [[https:// | ||
+ | * [[https:// | ||
+ | * [[https:// | ||
+ | * [[https:// | ||
+ | * [[https:// | ||
+ | |||
+ | ==== Technical support ==== | ||
+ | |||
+ | Most parts of the project were provided by [[http:// | ||
+ | |||
+ | Suppliers of the construction equipment: | ||
+ | |||
+ | * [[http:// | ||
+ | * [[http:// | ||
+ | |||
+ | |||
+ | ===== References ===== | ||
+ | |||
+ | * [[http:// | ||
+ | |||
+ | ==== Similar projects ==== | ||
+ | |||
+ | - http:// | ||
+ | - http:// | ||
+ | |||
+ | ==== TODO ==== | ||
+ | |||
+ | * A sounding rocket could be a future improvement of the project. | ||
+ | |||
en/abl.txt · Last modified: 2017/01/05 18:53 (external edit)