Gender
Male
About
Location
Kolkata, West Bengal
About Me:
I'm a 17 year old student from Kolkata , India. I'm currently a community developer for the PX4 Flight stack. I'm also a MAV consultant and systems integrator. I specialise in vision based estimation and control for UAVs. I'm interested in everything, from sustainable energy to artificial intelligence and neural network technology.
Please tell us a bit about your UAV interest
I specialise in vision based estimation and control for UAVs. This includes GPS denied navigation and sense and avoid. Visit us at www.uasys.io/research
Hometown:
Kolkata
Activity Feed
"Nice design! Can you post some closer shots and more details of the gimbal?"
"^ that."
"Sapog does not run on ESC32 hardware."
"Rob, I don't know when you last tried PX4 (maybe a couple of years back), but PX4 is definitely the premier flightstack for advance navigation and control integration. It's very much flyable.
About the open source / proprietary split, all features…"
About the open source / proprietary split, all features…"
"The Pixhawk hardware design was never 3DR's to open source."
"They were spec'ed for different purposes.
CAN is a high speed onboard interconnect. MAVLink is an offboard interconnect, primarily designed to interface with a GCS or other MAVs."
CAN is a high speed onboard interconnect. MAVLink is an offboard interconnect, primarily designed to interface with a GCS or other MAVs."
"The CAN specification has existed since the 90s. Not the UAVCAN protocol.
Mavlink is pre-2009, from the original Pixhawk student team.
UAVCAN came later."
Mavlink is pre-2009, from the original Pixhawk student team.
UAVCAN came later."
"Mavlink has existed long before UAVCAN."
"Hi Chris, as Gary and Rob asked, could you please clarify whether the footage you show in the video come from your actual vehicle?
It seems to me that the clips are not. Firstly the distinct lack of radial distortion from cameras so wide, and the…"
It seems to me that the clips are not. Firstly the distinct lack of radial distortion from cameras so wide, and the…"
"The R200 reference design is actually a hybrid system. It's not just structured light like a Kinect. The dual cameras work like a normal stereo pair outdoors, albeit with a rather small baseline. The ASIC on the R200 does all the processing, so…"
"Multi threaded FCs are nothing new. APM is sort of multi threaded in portions, and PX4 is fully modular, with each module (estimator, controller, sensor drivers, etc.) being a separate process which is connected by a very fast publish/subscribe bus.…"
"And if it comes to better hardware with isolated processing, we're already doing that today. The Snapdragon Flight for example has a multicore Krait applications processor and a Hexagon DSP at 800mhz running a RTOS and the timing critical flight…"
"Indeed. As someone also brought up sensor aliasing effects, if you consider the PX4 flight stack, sensor polling is at 2khz to mitigate effects of coning, etc. Running control loops at that rate is just a waste of processing though.
The only…"
The only…"
"Is this actually actually accelerated with GP-GPU?
I've been able to achieve 30fps, limited by camera framerate on a ARM CPU only. No parallelisation, just fairly optimised algorithm."
I've been able to achieve 30fps, limited by camera framerate on a ARM CPU only. No parallelisation, just fairly optimised algorithm."
"Hz are the megapixels of drones.
A faster control loop does not translate to better physical control. Can you show real data which can prove otherwise?"
A faster control loop does not translate to better physical control. Can you show real data which can prove otherwise?"
