Space Control Software

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In AMA by the SpaceX software development team, they wrote: We've been getting a lot of questions about how C#/MVC/etc have to do with rockets. About their development they said: The Flight Software team is about 35 people. We write all the code for Falcon 9, Grasshopper, and Dragon applications; and do the core platform work, also on those vehicles; we also write simulation software; test the flight code; write the communications and analysis software, deployed in our ground stations.

We also work in Mission Control to support active missions. The Ground Software team is about 9 people.

We primarily code in LabVIEW. We develop the GUIs used in Mission and Launch control, for engineers and operators to monitor vehicle telemetry and command the rocket, spacecraft, and pad support equipment. We are pushing high bandwidth data around a highly distributed system and implementing complex user interfaces with strict requirements to ensure operators can control and evaluate spacecraft in a timely manner.

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Neoragex Emulador Download Windows 7 more. They also said: Dragon and Falcon 9 use a version of Linux. They unfortunately replied to this question: What sort of computing power (CPU, RAM, Storage, etc.) do you have access to on board the rockets and capsules themselves? What's 'smarter,' the Falcon 9 or the Dragon? With: 100 Dragon sized Falcons or 1 Regular Sized Dragon So I'm guessing any further information is strictly classified:).

SpaceX uses an Actor-Judge system to provide triple redundancy to its rockets and spacecraft. The Falcon 9 has 3 dual core x86 processors running an instance of linux on each core. The flight software is written in C/C++ and runs in the x86 environment. For each calculation/decision, the 'flight string' compares the results from both cores. If there is a inconsistency, the string is bad and doesn't send any commands.

If both cores return the same response, the string sends the command to the various microcontrollers on the rocket that control things like the engines and grid fins. The microcontrollers, running on PowerPC processors, received three commands from the three flight strings. They act as a judge to choose the correct course of actions. If all three strings are in agreement the microcontroller executes the command, but if 1 of the 3 is bad, it will go with the strings that have previously been correct.

The Falcon 9 can successfully complete its mission with a single flight string. The triple redundancy gives the system radiation tolerance without the need for expensive rad hardened components. SpaceX tests all flight software on what can be called a table rocket. They lay out all the computers and flight controllers on the Falcon 9 on a table and connect them like they would be on the actual rocket. They then run a complete simulated flight on the components, monitoring performance and potential failures. SpaceX engineers perform what they call 'Cutting the strings' where they randomly shut off a flight computer mid simulation, to see how it responds. Dragon uses a similar triple redundant system for its flight computers.

Bonus: Dragon V2 control panels are modified 17' Tesla Model S touchscreens and include the same Nvidia Tegra SoCs. They are not part of the flight hardware and are only used to display the GUI. Manual Lavadora Unique Klasse Sealant. After talking with the Dragon team at GDC2016, it appears Tesla hardware is not used. They do use some interesting software on Dragon 2. They use Chromium and JavaScript for the Dragon 2 flight interface.