drone | Starting point for the CCA Summer School | Robotics library
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kandi X-RAY | drone Summary
Starting point for the CCA Summer School's autonomous drone programming
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of drone
drone Key Features
drone Examples and Code Snippets
Lines of Code : 4License : Permissive (MIT License)
Copyfunction droidProducer(kind) {
if (kind === 'battle') return battleDroidFactory;
return pilotDroidFactory;
} Community Discussions
Trending Discussions on drone
QUESTION
During a flight, say with a pixhawk, I want to save the current location of the drone in reference to its initial start location. Ideally that would be the x, y, and z positions in meters. I understand that you can save the lat, lon, or IMU/velocity readings using dronekit, then calculate the position. It would be awesome, however, to be able to just call a function that calculates the x, y, and z for you so there is no post-processing.
...ANSWER
Answered 2021-Jun-12 at 23:52The following was satisfactory for my purposes (I believe you would need a GPS but not positive):
QUESTION
I'm needing to verify an HTTP HMAC signature for a program I use (Drone CI, trying to create an extension), but nothing I'm trying is getting the results to match.
Specifically, the HTTP request looks like this:
...ANSWER
Answered 2021-Jun-11 at 01:55They appear to be using an implementation of the http signatures draft.
The linked document explains the way the signature needs to be calculated and how to verify it. But this is probably why your example doesn't work:
2.1.3. headers
OPTIONAL. The
headersparameter is used to specify the list of HTTP headers included when generating the signature for the message.
Basically the signature doesn't include just the message, probably to prevent replay attacks. Since you just hash the message it is working as intended.
QUESTION
since a few weeks I've been using Drone.io a CI/CD tool and found out that only bin/sh commands can be executed in it and not bin/bash. Now I'm looking for a one line command to find files on '*.yaml' except 'secrets.yaml' and run a command with the found *.yaml files.
What i have tried is:
...ANSWER
Answered 2021-Jun-10 at 15:05You're almost there. Just use a -not or ! to exclude files that you don't want to.
QUESTION
I have a dataset with drone view images of size 4000x6000, grayscale. Each individual pixel value corresponds to a class (I have 20 classes in total), so a pixel value of 3 would mean "tree" for example. Using the original image, I can very easily create binary masks for all 20 of the classes by using equality operators in NumPy and I get pixel-perfect masks.
Here's an example of what one row would look like:
[[2, 2, 2, 2, ...... , 5, 5, 5]]
However, 4000x6000 is much too big for my purposes, and I want to resize these segmentation targets to something a bit more bearable, such as 400x400 or 400x600. Though I've tried a few different Python libraries, all of them convert my pixel values to different float values causing me to lose my segmentation map labels. Is there any method (not including cropping), where I can resize my segmentation target maps AND the original RGB input images without losing my labels?
...ANSWER
Answered 2021-Jun-09 at 05:01When one resizes an image, one usually needs to interpolate pixel values (e.g., decide on the "intensity" at sub-pixel locations). Natural images tend to vary smoothly between pixels, which makes interpolation with large support very appealing (see detailed discussion here).
However, as you observed, interpolating between integer values of labels makes no sense at all.
Therefore, you can:
Do not interpolate - use nearest-neighbor resizing for the label map.
That is, use whatever interpolation method you like (LANCZOS,BICUBIC...) for the input image, but useNEARESTmethod for the label map.Interpolate the per-label probability maps - for each
4000x6000label map, produce 20 per-class probability maps and interpolate them to the desired size (using the same interpolation method as used for the image:LANCZOS,BICUBIC...). Now, for each resized pixel you have a 20-dim target distribution. You can train with these "soft labels", or take theargmaxand train with the most dominant label per pixel.
QUESTION
My app is a basic list of QLineEdit where users enter values and click on "generate" to create a config file for a drone.
...ANSWER
Answered 2021-Jun-08 at 12:24ok I found it, it's in the documentation and I did not see it
QUESTION
Here is my code:
...ANSWER
Answered 2021-Jun-06 at 00:44I can't 100% understand what you're going for, but you should make a empty list at the beginning, and append the number strings to it whenever the condition is met, then make it a string with:
QUESTION
When attempting to get yuv video data from Matrice 600, it works correctly about 5% of the time. But most of the time, I never receive onYUVDataCallback. When I check the decoder status with DJICodecManager.isDecoderOK(), I receive false. For the rare occasions that it does work, isDecoderOK() returns true.
I'm using dependencies as below
...ANSWER
Answered 2021-Jun-03 at 05:16The fix for me was to add the DJI gradle dependencies to the main app module in addition to my dynamic module which contained all my dji related code and already had the dependencies.
There must be a better way to do this since the whole point of splitting the DJI sdk stuff outside of the main app module and into a dynamic module was to reduce the app to a size deployable to Google Play as a bundle.
QUESTION
I am trying to achieve the network architecture above. The Pi is connected to the drone via WiFi, and it is connected to the Access Point via ethernet.
How can I route packets via the Raspberry Pi to a Tello drone, and from a Tello drone via the Raspberry Pi to 192.168.1.100? What iptables commands could I use?
This is the simple python script I am using to send the drone commands from 192.168.1.100.
...ANSWER
Answered 2021-Jun-02 at 17:15Sry for late reply, just back from some testing.
You may follow this thread here for some answer
https://stackoverflow.com/a/67664774/11530294
the key command to achieve the forwarding is sudo iptabels
You may refer to this technical report for details. https://github.com/snakehaihai/Tello_formation_and_visual_control/blob/master/Technical%20Report.pdf . The key command and instructions are all in the appendix section
The rest of github repo construction isn`t complete yet. but the key command is already provided in technical report. For visual SLAM based navigation, the core source code is here but need tons of tuning.
QUESTION
I'm playing around with an esp32 (c with esp-idf, not with arduino) for a hobby project of mine. I'm currently programming a little drone that I can control with my smartphone. All works well.
But now I need to create system for persistent settings and parameters. For example pid-tuning parameters or what sensors are enabled and more. The general idea was to have a settings file in flash that is read on startup. The settings can then be used in the individual modules of the program. Now I'd also like to change those settings during runtime. For example pid tuning parameters. I don't want to reboot the system only to change a small parameter.
So now my question: How can I handle changes to those settings during runtime?
An idea was to have the module periodically ask a special "settings-module" if there are any changes. It would then change its internal settings accordingly. As settings shouldn't change that often I think the overhead of constantly asking for updates is rather unnecessary.
A more extreme idea was, to give a pointer to the variable in question to the "settings-module". If any changes have to be made the settings module would change the variable directly.
Or maybe a callback system?
The ideas seem feasible but I don't know if there are any best-practices or better options.
Does anyone of you know a name of a technique I can google or maybe an library that provides something similar?
Thanks!
...ANSWER
Answered 2021-May-26 at 08:35ESP ISF already has 90% of your requirements covered with the non-volatile storage library - string keys, int/string values, wear levelling etc. Just use this to store all your settings and parameters. Read from it every time you want to get a value (unless you go to the sub-millisecond latency land, in which case it's perhaps best to cache the settings in RAM).
Reading a value from NVS can fail (e.g. if the parameter is not stored, the NVS partition got wiped, etc) which would introduce cumbersome error handling into every code block where you read a parameter. A common trick to avoid this error handling is to add a thin wrapper which takes a fallback value of the parameter and returns it every time reading the parameter from NVS fails. Something like this:
QUESTION
I have this bunch of badly written code in Processing 3.5.3. I want the "drone" to shoot again when the "bullet" leaves the screen, but it starts glitching. Any ideas, what can be wrong, or how to improve the screen leaving detections or things like that. I copied here the whole code so you can try it out because it isn't so complicated yet
...ANSWER
Answered 2021-May-25 at 06:25You had some dead code (code that is never run) in your draw loop. When you write
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