Litchi Follow Mode

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#1

Is there something I am doing wrong or is it a bug?
First I was 82 ft high to clear all obstacles. First I was on a 150’ leash and Subject (me) at 25’. Later I shorten the leash to 100’ and then again later I set the Subject to 10’ to keep from running off the bottom of the video.
I had shot a video earlier and posted it with the drone following my Jeep. It almost seems I was walking to slow as the drone seemed to hunt all over the place though it kept me in sight.
I have a long video posted on YouTube showing the problem

Here is a clip of the track

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#2

I have been using my 10" Lenovo Tablet to run the drone but today I tried my Motorola phone to test and came up with exactly the same results.
I am locked onto 23 Satellites just for more info.
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#3

Okay so here is another test I did from my Jeep at between 10-12 mph with the same follow settings as my walk in earlier posts. I even tried to trick it on some tight turns. It performed quite well.
Here is the video link on YouTube

#4

Here is the nice smooth track from the video above
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#5

You have presented a very detailed description of your troubleshooting of Litchi’s “Follow” mode. I haven’t seen anyone else go through all of the steps that you have shown us. Thanks for that.

I fly using an iPad (with no GPS) so I have not attempted to use the “Follow” mode. Therefore, I cannot confirm what you have shown us. However, it would seem that you have found that there is indeed a minimum speed limitation for this mode to work properly.

I am watching this thread to see if others who do use the “Follow” mode share your experience.

#6

Thanks for the compliments. :slight_smile: My background is retired computer tech and therefor lots of tech support. I hate it when people say “It doesn’t work” then make support dig the details out of the person.
I think it is important for everyone to take an interest and help support as much as we can if we want to see a great product like this succeed.
Happy flying!

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#7

I read somewhere tonight that the software needs movement at 1/m second to work. That works out to about 2.24 mph. I was walking at just under 4 mph. Maybe I got lazy and slowed down. I will try a faster walk tomorrow and see what happens.

#8

Have a look at this topic:

#9

Thanks but, I do have the services turned on and have tried it on both my Android Tablet and my Android phone.

#10

Okay I tried a new test today. I used the follow mode but not the Course Tether mode. In other words I set the follow course to SE and left it there and the drone followed me perfectly

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#11

If nothing else, you are getting plenty of exercise doing all of these tests.

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#12

I found one interesting problem with litchi location gps. For more accurate work, you need to turn off the “improvement of google location”, while the accuracy becomes about 2-3 meters.

#13

Of course. Indeed, in this mode, the drone does not need to fly around you when you turn around. It gets darker, even in leash mode I get good results

#14

Well if you look at my posts above you will see how mine wanders at walking speed when on leash but not when I drive at 10 mph. I think there is a small glitch in the software.

#15

I’m talking about this to you. My phone showed gps accuracy of about 10 meters. If you turn off “google positioning improvements”, then the accuracy approaches the value of 1 meter.

This is actually logical, because the drone does not use the signals of cell stations, and the phone is unnecessary

#16

I think litchi is using gmaps data incorrectly. The gmaps app itself works fine, but litchi may or may not work.