Business idea I'm gonna passively work on

I can see that being used like you described and for the military. I can see "helper drones" being used to aid in military operations.

 

I like this idea. You'd have to package it in a very confined and effective manner. You could sell it in a kit with other survival tools (flares, flashlight, etc.) to make some more profit.

 

Packaging electronics to a small, compact, yet efficient (eg. You don't have the battery heating everything up to scary temperatures/battery is breathing) is much harder than you would think.

 

Wow. That's actually a pretty good device. I am not so sure if it's going to appeal to the general public, but I think the military would love to have something like that. Best of luck!

 

This has been done with FPV drone racing. It also adds another component that the user must carry. I would keep it fairly autonomous, teleop requires you to send a signal, which will surely kill the battery faster.

 

I would suggest using a mobile device, it eliminates yet another thing the user has to carry.

 

Do you build the device? Or just buy it and resell it? How high can your device go up? Does it have an inbuilt camera?

 

The phone could have life feed of what the drone sees, or it could then send the pictures to the phone via Bluetooth. I feel like you're underestimating the packaging size though, it needs to be very small, hiker's bags are already crammed. You could have it so that if the drone loses connection with the device, it just automatically makes a safe landing, keeping the vessel in tact.

 

As mentioned, the military would like it. Another group who would like it are people who are doing roadtrips to where their GPS might stop functioning on their phone (but if they have something like this in their backpack or travelbag that still has power, they can launch it up to see approximately how far it is to walk, hitchhike, etc to the nearest gas station or small town to get assistance).

People who are hiking in nature would also use this. There's someone on this forum starting a hiking team that may be interested in this once things are coming along for them. Even if they know the way, it can be a vantage point in telling hikers that "not only are there trained and skilled companions to go with them, but there is GPS and even if that were to stop working, our team has a specialized mini-drone to help you to make it back to your starting point safely".

All kinds of possibilities.