About

Gender

Female


Location

Zurich


Please tell us a bit about your UAV interest

I'm interested in autopilot.


Hometown:

Wuhan


Activity Feed

Anna Tian posted a photo
StearmanClr
Feb 2, 2015
Anna Tian replied to Anna Tian's discussion Best open source autopilots v.s. commercial autopilots for conventional fixed wing unmanned aircraft usage
"In Internet slang, a troll (/ˈtroʊl/, /ˈtrɒl/) is a person who sows discord on the Internet by starting arguments or upsetting people,[1] by posting inflammatory,[2] extraneous, or off-topic messages in an online community (such as a newsgroup,…"
Feb 2, 2015
Anna Tian replied to Anna Tian's discussion Best open source autopilots v.s. commercial autopilots for conventional fixed wing unmanned aircraft usage
"1. Actually it doesn't cost me too much time to write the questions and read the other people's answers. When I ask same questions in different forum, I just copy them. I also asks these questions to my friends but I'd like to hear about more…"
Jan 26, 2015
Anna Tian replied to Anna Tian's discussion Best open source autopilots v.s. commercial autopilots for conventional fixed wing unmanned aircraft usage
"'Using' and tune Pixhawk/APM is quite essential if I want it to perform well. What knowledge or background it needs besides extensive experience on it?"
Jan 25, 2015
Anna Tian replied to Anna Tian's discussion Best open source autopilots v.s. commercial autopilots for conventional fixed wing unmanned aircraft usage
"Do we also need an engineer with theoretical knowledge in both flight control theory and flight mechanics? There are aerodynamics and flight mechanics engineers in our team. But we don't have an 'flight control engineer'. Does 'use' Pixhawk for my…"
Jan 25, 2015
Anna Tian replied to Anna Tian's discussion Pixhawk airspeed sensor (from 3DR) measurement range problem
"Does that mean it is quite hard(impossible?) to obtain a more accurate air speed with airspeed sensor costing less than 500 USD?

By the way how could it use gps data to obtain a more accurate airspeed? Wind changes all the time. Theoretically there…"
Jan 25, 2015
Anna Tian replied to Anna Tian's discussion Best open source autopilots v.s. commercial autopilots for conventional fixed wing unmanned aircraft usage
"Hi Andre,
Is there any book or document teaching the engineering process to get, as you said, ‘fully tested, documented setup, description how different limits are handled, air test, documented flight envelope for your UAV with a certain payload’?…"
Jan 24, 2015
Anna Tian replied to Anna Tian's discussion Why no fixed wing UAV in crop dusting? in Agricultural UAVs
"I don’t understand why the flight speed is limited by the auto spray trigger. If it doesn’t spray fast enough, why not use a stronger pump?"
Jan 22, 2015
Anna Tian posted a discussion in Agricultural UAVs
Hi, I have seen multi copters and helicopters UAV used for crop dusting. But I have never found any fixed wing UAV used in this area. As different countries have different farmland size and regulations, totally lack of fixed wing in this area seems…
Jan 22, 2015
Anna Tian replied to Anna Tian's discussion Best open source autopilots v.s. commercial autopilots for conventional fixed wing unmanned aircraft usage
"I can find hobbyist to teach me how to connect the cables and use Pixhawk.
What I want to figure out is whether we need a people with a university degree (master in autopilot?) or experiences to work for 'adapting' and improving Pixhawk on our…"
Jan 22, 2015
Anna Tian replied to Anna Tian's discussion Best open source autopilots v.s. commercial autopilots for conventional fixed wing unmanned aircraft usage
"Thanks for your reply and advice, Darrell.
 
Here is our situation. We are a startup and have no people working on autopilot currently. None of us has background in autopilot. We are aerodynamics, structural design and manufacturing people. You know…"
Jan 22, 2015
Anna Tian posted a discussion
Hi,I plan to use 3DR’s Pixhawk in the new gasoline engine (120cc) powered conventional fixed wing commercial UAV we will produce. I realize that Pixhawk is mostly used in the electrical motor powered small aircraft. Even though there’s a Pixhawk…
Jan 21, 2015
Anna Tian replied to Anna Tian's discussion Best open source autopilots v.s. commercial autopilots for conventional fixed wing unmanned aircraft usage
"I don’t get your point. Why I shall see some differences between these two boards if the only major difference is the quality control?
 
I haven’t flied the Pixhawk a lot yet. I just bought two Pixhawk as stated above. The main problems I got are:…"
Jan 21, 2015
Anna Tian replied to Anna Tian's discussion Best open source autopilots v.s. commercial autopilots for conventional fixed wing unmanned aircraft usage
"I have two Pixhawk board, one from 3DR and another one from a Chinese factory (we may call this 'pirate' one). The 3DR one has shown non better performance or stability than the 'pirate' one up to now from my experience. I have one 3DR 6H GPS, one…"
Jan 21, 2015
Anna Tian replied to Anna Tian's discussion Best open source autopilots v.s. commercial autopilots for conventional fixed wing unmanned aircraft usage
"Hi Gustav,
 
I'm interested in using it in the commercial UAV we designed.
 
I start to learn and use Pixhawk recently. I found that it was not very stable when I tried to connect it to my computer. The software Mission Planner and QGC usually…"
Jan 20, 2015
Anna Tian replied to Anna Tian's discussion Pixhawk airspeed sensor (from 3DR) measurement range problem
"Could anyone help on this air speed sensor problem?"
Jan 19, 2015
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