Payloads For Drones In Emergency Response - DSLRPros

Drones are an asset for emergency response teams, due to their rapid deployment and flexibility. They cut down time spent during search and rescue missions, are safer for  police teams assessing volatile situations before sending in ground personnel, and even cost a fraction of deploying helicopters whenever there is a callout. The unmanned aerial vehicles (UAVs) versatility expands with the kind of payloads that they can carry for such missions. That will be our focus here. 

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Drone Payloads 101: What They Are, And How They Work

When we talk about "payload" in drones, we're referring to all the extra gear that a UAV carries beyond the basics needed for flight. They really boost what the drone can do, and typically include things like cameras, sensors, communication tools, and sometimes even delivery items like medical supplies.

For example, cameras and sensors mounted on drones can capture crucial visual and thermal information from disaster zones – from floods to earthquakes, which helps in making smarter, quicker decisions. Detecting heat signatures is particularly beneficial during night searches or in dense areas where visibility is low, enabling SAR teams to locate missing individuals. Where roads might be blocked or areas are too dangerous for ground teams, drones can carry payloads like medical supplies, food, or water directly to people in need. Even during hostage situations or when suspects barricade themselves, drones can carry small, maneuverable cameras to provide live feeds to tactical teams. This payload allows law enforcement to monitor the situation safely and plan their approach without putting officers directly in harm's way.

The kind of payload that emergency response drones carry is determined by several factors, including:

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• Weight and Flight Stability: The weight of the payload can significantly influence a drone's flight dynamics. Heavier payloads may reduce flight stability and maneuverability. This is due to the increased weight requiring adjustments in the drone's motor power, propeller size, or flight controller settings to maintain stability during flight. 

• Battery Life and Flight Time: Carrying heavier payloads increases the power consumption of the drone, leading to reduced flight times. This is because heavier payloads require more energy to lift and maintain in the air, thereby draining the battery quicker. To address this, some advancements have been made in battery technology, such as the use of semi-solid batteries that provide greater energy efficiency without significantly increasing weight.

Each drone has a specified maximum payload capacity. Exceeding this limit can strain the drone's motors and lead to potential damage, so avoid the temptation, even with heavy lift drones. The design and integration of the payload are also critical, as poor integration can cause uneven weight distribution, affecting the drone’s flight performance and stability.

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I am trying to come up with a way to pick up and release stranded/broken drones from a heavy lift drone with a winch mounted to the bottom.

I have been thinking about an electromagnet. I found one that says it can lift 5 pounds or so and runs on 5vdc. The winch and electromagnet will have their own battery.

My question is this: Does anyone see an electromagnet deployed from a winch on the bottom of my S900 causing any sort of interference with the A2 flight control system?

I am picturing a steel washer epoxied to the drone I am recovering for the magnet to stick to.

It’s all just in the planning so far. Any ideas or comments are welcome.

Thanks, Mike

I am trying to come up with a way to pick up and release stranded/broken drones from a heavy lift drone with a winch mounted to the bottom.

I have been thinking about an electromagnet. I found one that says it can lift 5 pounds or so and runs on 5vdc. The winch and electromagnet will have their own battery.

My question is this: Does anyone see an electromagnet deployed from a winch on the bottom of my S900 causing any sort of interference with the A2 flight control system?

I am picturing a steel washer epoxied to the drone I am recovering for the magnet to stick to.

It’s all just in the planning so far. Any ideas or comments are welcome.

Thanks, Mike

So you intend to use a (heavy lift) drone to rescue stranded or crashed drones. Assuming that the allowance for payload of equipment and stranded/rescued drone are covered, the biggest problem I see is:

If there is a stranded drone that you can't physically reach (otherwise it is not stranded) - how are you going to epoxy the steel washer to the stranded drone so as to allow for the electro magnet to work?

Personally, I would ditch the idea of an electro magnet and a winch as these both add dead weight and complexity. The electro magnet needs a powers source and as mentioned - what is it going to attach to when most drones are plastic? The winch is redundant when; assuming you have to be directly over the target anyway, thus clear of any obstructions in the vertical, the raising and lowering of the drone effectively does the same thing.

You might want to just try some simple experimenting with a tether line with some sort of grappling hook and see if you can even achieve a 'rescue' under the best conditions such as in an open field a few feet away. Through simple experimenting you will begin to find any shortcomings and what works and what doesn't.

So you intend to use a (heavy lift) drone to rescue stranded or crashed drones. Assuming that the allowance for payload of equipment and stranded/rescued drone are covered, the biggest problem I see is:

If there is a stranded drone that you can't physically reach (otherwise it is not stranded) - how are you going to epoxy the steel washer to the stranded drone so as to allow for the electro magnet to work?

Personally, I would ditch the idea of an electro magnet and a winch as these both add dead weight and complexity. The electro magnet needs a powers source and as mentioned - what is it going to attach to when most drones are plastic? The winch is redundant when; assuming you have to be directly over the target anyway, thus clear of any obstructions in the vertical, the raising and lowering of the drone effectively does the same thing.

You might want to just try some simple experimenting with a tether line with some sort of grappling hook and see if you can even achieve a 'rescue' under the best conditions such as in an open field a few feet away. Through simple experimenting you will begin to find any shortcomings and what works and what doesn't.

My S900 has plenty of lifting power to recover the drones I am playing with and then some. It will lift 14 pounds effectively even in wind.

The drones I am recovering will have the washer epoxied before their staged crash. This is for a specific video I am attempting to produce rather than being able to rescue others drones.

I thought about just using a tether but I am scared of it getting caught up and not being able to get my drone out of trouble. With the tiny RC truck winch if I wrap the line right I should be able to release all of it and get away. The power to the electromagnet is my problem there.

I was looking at the electromagnet rather than a regular one so it could be turned off until the S900 is in place and ready to attach.

Thanks!!

Mike

My S900 has plenty of lifting power to recover the drones I am playing with and then some. It will lift 14 pounds effectively even in wind.

The drones I am recovering will have the washer epoxied before their staged crash. This is for a specific video I am attempting to produce rather than being able to rescue others drones.

I thought about just using a tether but I am scared of it getting caught up and not being able to get my drone out of trouble. With the tiny RC truck winch if I wrap the line right I should be able to release all of it and get away. The power to the electromagnet is my problem there.

I was looking at the electromagnet rather than a regular one so it could be turned off until the S900 is in place and ready to attach.

Thanks!!

Mike

Use a fishing rig under your drone in case you get hooked up.
Have seen them in PP that used them for drone fishing and wired
it to the lights. Get stuck just release it.