Three questions

[Elvis44]

Hi there

I am a relatively fresh M2P owner, and now have accumulated some questions:

1. What happens to the drone if my phone gets disconnected/turned off during the flight?
2. What happens to the drone if my remote controller gets disconnected/turned off during the flight?
3. Is it possible to see data flight information overlaid on top of the recorded video? Guess not, but it would be so nice to know the current altitude, or speed etc.

And one more - what is a serious altitude you guys managed to get M2P to - like 500 m, or more? (yes, I am aware of the regulations, but interested purely from the technical standpoint).

Thanks.
E.

 

[DebianDog]

1. You fly it with the controller or hit return to home or try and reconnect it
2. It returns to home or autolands however you have it programmed
3. You could if you have video and computer talent . All the data is there. Easily? no
4. You can fly higher than that

To view this content we will need your consent to set third party cookies.
For more detailed information, see our cookies page.

Accept third party cookies

 

[Elvis44]

Makes sense, thanks

 

[brett8883]

4. The max service ceiling for Mavic 2 is 6000m (19,685 feet). Mavic 2 - Specifications, FAQs, Videos, Tutorials, Manuals - DJI

 

[FormerMember07122019_2]

Is it possible to see data flight information overlaid on top of the recorded video? Guess not, but it would be so nice to know the current altitude, or speed etc.

I’ve never done it but I have seen where folks do a screen record of the mobile device running DJI Go 4.

 

[ff22]

I don't recall details but there was a posting about how to overlay data - I think it used some 3rd party program. Just fuzzy memories of some posting.

 

[jwt873]

The "what to do" settings for when the controller signal is lost is in the advanced page of the "Main Controller Settings". You can change them there..

 

[Cloudnine]

Hi there

I am a relatively fresh M2P owner, and now have accumulated some questions:

1. What happens to the drone if my phone gets disconnected/turned off during the flight?
2. What happens to the drone if my remote controller gets disconnected/turned off during the flight?
3. Is it possible to see data flight information overlaid on top of the recorded video? Guess not, but it would be so nice to know the current altitude, or speed etc.

And one more - what is a serious altitude you guys managed to get M2P to - like 500 m, or more? (yes, I am aware of the regulations, but interested purely from the technical standpoint).

Thanks.
E.

I'm definitely interested in #3 - i've seen example video on this site where people have done that and i think it's a cool addition.

as far as #2 - i have mt RTH set to hover; i feel safer that way as i can always try to regain control and then fly her home.

 

[Mossiback]

...as far as #2 - i have mt RTH set to hover; i feel safer that way as i can always try to regain control and then fly her home.

You should rethink that strategy. As long as you are not moving around (like in a boat), it is better to set RTH height properly for the area and have it return to home if disconnected from the RC. If it is set to hover and you cannot regain connection with the RC, it will hover until critical low-battery level forces it to land where it is.

 

[brett8883]

as far as #2 - i have mt RTH set to hover; i feel safer that way as i can always try to regain control and then fly her home.

I as well think you may want to reconsider this. But do what you think is best.

 

[Robert Granata]

Regarding question 3, go to settings in the camera menu (under the start/stop recording button) and turn on video captions. This will record another file on the sd card containing the flight data. Then use a program like DashWare ( DashWare - Telemetry Data Overlay on Your Videos ) to merge and display the fight data on the full resolution video from the card.

 

[Cloudnine]

You should rethink that strategy. As long as you are not moving around (like in a boat), it is better to set RTH height properly for the area and have it return to home if disconnected from the RC. If it is set to hover and you cannot regain connection with the RC, it will hover until critical low-battery level forces it to land where it is.

Oh it’s been rethought and precisely for the reason you just gave, it’ll hover till I regain connectivity or land and I’ll use a Marco Polo to recover.

Now I take everything I read with a grain of salt so if there’d something I read that might have some merit i’ll Test it. RTH horror story, one after another I decided to spend a whole day doing RTH tests: 10 performed, from multiple locations (albeit in the same mile circumference) 3 were what I would consider ‘perfect’, 2 in the acceptable range and 5 had issues. While I didn’t allow a crash to happen it was evident to me when I fly around my home 50% “acceptable” success rate isn’t something i’m going to hang my hat on; i’ll Stick with hover and recovery if I cant reconnect.

I’m new at this so I’ll lend to the experts on this site but this is something I think i’ve made the right decision on. Now, traveling I may do the obligatory RTH, especially if going over water.

 

[Mossiback]

Oh it’s been rethought and precisely for the reason you just gave, it’ll hover till I regain connectivity or land and I’ll use a Marco Polo to recover...

Hey, whatever floats your boat. I am not the kind that believes my way is the only way and if the hover setting works for you then that's okay. I did not know you had a Marco Polo to help find it so that eliminates one big problem with hover. Another big problem with the hover setting is if the ground (or water) it will be forced to land on is not suitable you might be retrieving a wreck.

 

[brett8883]

Oh it’s been rethought and precisely for the reason you just gave, it’ll hover till I regain connectivity or land and I’ll use a Marco Polo to recover.

Now I take everything I read with a grain of salt so if there’d something I read that might have some merit i’ll Test it. RTH horror story, one after another I decided to spend a whole day doing RTH tests: 10 performed, from multiple locations (albeit in the same mile circumference) 3 were what I would consider ‘perfect’, 2 in the acceptable range and 5 had issues. While I didn’t allow a crash to happen it was evident to me when I fly around my home 50% “acceptable” success rate isn’t something i’m going to hang my hat on; i’ll Stick with hover and recovery if I cant reconnect.

I’m new at this so I’ll lend to the experts on this site but this is something I think i’ve made the right decision on. Now, traveling I may do the obligatory RTH, especially if going over water.

What were the issues?

 

[Robert Granata]

Oh it’s been rethought and precisely for the reason you just gave, it’ll hover till I regain connectivity or land and I’ll use a Marco Polo to recover.

Now I take everything I read with a grain of salt so if there’d something I read that might have some merit i’ll Test it. RTH horror story, one after another I decided to spend a whole day doing RTH tests: 10 performed, from multiple locations (albeit in the same mile circumference) 3 were what I would consider ‘perfect’, 2 in the acceptable range and 5 had issues. While I didn’t allow a crash to happen it was evident to me when I fly around my home 50% “acceptable” success rate isn’t something i’m going to hang my hat on; i’ll Stick with hover and recovery if I cant reconnect.

I’m new at this so I’ll lend to the experts on this site but this is something I think i’ve made the right decision on. Now, traveling I may do the obligatory RTH, especially if going over water.

Since the introduction of Precision Landing I have performed RTH several dozen times and the only problem I ever had was once the engines didn't turn off after landing (it kind of bounced and then just hovered about 2 inches above the pad until I landed it). It has never landed more than 10 inches from the takeoff point and usually it was within about 3-4 inches.

I also believe you have a greater chance of reconnecting with the drone if it is coming right back to you. Even if it never reconnects, I would rather run the small risk of a bad landing in my backyard than in some random area where recovery may not be possible like lakes, busy streets and highways, or a drone haters backyard.

But that's just me.

 

[AnzacJack]

Answer to question 3 - droneviewer

Home | DroneViewer | Take Your Drone to the Next Level

DroneViewer is unique playback software that renders your drone videos in a completely new way. Let's take your drone to the next level.

mydroneviewer.com

 

[Meta4]

RTH horror story, one after another ....
but this is something I think i’ve made the right decision on.

RTH horror stories?
I don't think I've seen any that weren't due to a failure to understand what RTH does and how it does it.
RTH is an extremely reliable sub-system and works very well.
Unfortunately the same cannot be said for every pilot.

There's a very good reason that RTH is the default option for loss of signal.
In almost every situation, it is the best option and changing it is likely to be a poor choice.

RTH horror story, one after another I decided to spend a whole day doing RTH tests: 10 performed, from multiple locations (albeit in the same mile circumference) 3 were what I would consider ‘perfect’, 2 in the acceptable range and 5 had issues. While I didn’t allow a crash to happen it was evident to me when I fly around my home 50% “acceptable” success rate isn’t something i’m going to hang my hat on

What was the problem you think you observed?

 

[Dragonfly]

4. The max service ceiling for Mavic 2 is 6000m (19,685 feet). Mavic 2 - Specifications, FAQs, Videos, Tutorials, Manuals - DJI

This is only a service ceiling and it means that the drone will fly IN AN ALTITUDE of 6000m. It won't fly from take off point to that altitude.
Above this altitude the air is so thin that the thrust from the props cannot support the weight of the drone. Of course it is only a guide as the air can be heavier or lighter at different altitudes.

The max height pre programed into Go4 for all Drones is 500m (1650 feet) from its take off point. So unless you hack the firmware, no matter if you are 3000 feet up in the mountains you can only fly up another 1650 feet from launch point.

Now to record flight with overlay of screen data. You can use or download from app store a screen record app that you start before flight, this records your screen view like Go4. Some phones like Huawei have built in screen recorders that you start with a tap.

They record exactly what you see on your screen at time of recording.

These recordings are what you see posted.

 

[Cloudnine]

RTH horror stories?
I don't think I've seen any that weren't due to a failure to understand what RTH does and how it does it.
RTH is an extremely reliable sub-system and works very well.
Unfortunately the same cannot be said for every pilot.

There's a very good reason that RTH is the default option for loss of signal.
In almost every situation, it is the best option and changing it is likely to be a poor choice.


What was the problem you think you observed?

i'll humor you even though i don't appreciate the passive-aggressive tone; at the end of the day you are going to be you and I'm going to be me; i make my decisions based on my experience and you do the same for you.

-- never once did the drone land fully on the pad (and i have the biggest circular one you can get); my definition of the 'perfect' landing was if it got at least 1 leg on the pad.
-- the 2 satisfactory times it landed within 10 feet of the pad
-- for the 5 unsatisfactory times:
-- twice tried to land on a chain link fence (approx 15ft from the pad)
-- once flew completely over me NOT at the RTH height setting but fortunately high enough to miss my palm trees and roof, i disabled RTH and hit is again and it did come back
-- 1 landing was a 'bounce' as if it wasn't aware of the elevation change (my yard is sloped downward to a canal, not significant but probably a total of 6' over a distance of 25')
-- 2 landings were 'drops' where it assumed the ground was there and started power down, again my assumption the slope, the fall wasn't great but still about 6"

lastly the thing i didn't like the most was the drone didn't go straight up to get to RTH height, it angled, almost every time and there was no upwards obstruction and twice it appeared would have flown into a palm tree (and obstruction avoidance does work) had i not cancelled it.

at the end of the day this is my choice, i'm not recommending it to anyone, or using words as "if you don't it's a poor choice". i do appreciate the warning but this is something i'm convinced is the right thing for me. My drone has never been more than 3/4 mile from me, not above 399ft and only in P mode.

 

[Srcrain]

One thing that hasn't been specifically mentioned is that at least some people use RTH to get the drone back in communication range and stop the function well before it attempts to land. This is a great safety feature that I am constantly using. I almost never use RTH all the way to landing, I just use it to get my connection back. Usually when the remote disconnects and starts the RTH I get a reestablished connection in at most a couple minutes, I then continue flying.