RemotelyPossible

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Everything posted by RemotelyPossible

  1. Jim, Fantastic way to bring in science, and more specifically molecular biology into the world of drones. A couple of things to consider, Though nearly all pollen from various species of Angiosperms have been found to have a charge, it is not always negative. Some pollen from the same plant will be positive some will be negative, it has to do with the natural reduction or oxidation that occurs along the surface of the pollen with the interface of the air, and other molecules. Essentially they could not all become negative as the attractive force between them and the positive plant would cause some back flow of electrons. The the electromagnetic fields (static or dynamic) generated by the components in the controller, on the LED, or LCD screen can certainly attribute to some "static cling", electromagnetic attraction, between the surface of the pollen and the surface of the components. It becomes more complex as you consider the other natural phenomenon that occur simultaneously, for example pressure differentials between the wash from the props and the jet of air around the drone, the Coanda effect streamlining jets around the curved surfaces, and even Brownian motion and diffusion come into play. heck even the transpiration from the trees, and the natural evaporation from the pond will pay a significant role in the distribution of charges in aerosol molecules. All that considered unless you are flying in a situation in which the pollen count is so high (maybe even to the tune of 1000-10000 ppm, which may be possible in spring time "or pollination time") the build up from one flight should be negligible so long as you are doing your part to to remember to check and clean the drone. If you are regularly flying in this area it would be a good practice to clean the components regularly, as build up over multiple flights could definitely cause problems from the transmitter, the gimbals, even the prop motors could be effected. a little research from the EPA on "electrostatic forces in wind-pollination" https://cfpub.epa.gov/si/si_public_record_report.cfm?dirEntryId=161049
  2. Jim, Fantastic way to bring in science, and more specifically molecular biology into the world of drones. A couple of things to consider, Though nearly all pollen from various species of Angiosperms have been found to have a charge, it is not always negative. Some pollen from the same plant will be positive some will be negative, it has to do with the natural reduction or oxidation that occurs along the surface of the pollen with the interface of the air, and other molecules. Essentially they could not all become negative as the attractive force between them and the positive plant would cause some back flow of electrons. The the electromagnetic fields (static or dynamic) generated by the components in the controller, on the LED, or LCD screen can certainly attribute to some "static cling", electromagnetic attraction, between the surface of the pollen and the surface of the components. It becomes more complex as you consider the other natural phenomenon that occur simultaneously, for example pressure differentials between the wash from the props and the jet of air around the drone, the Coanda effect streamlining jets around the curved surfaces, and even Brownian motion and diffusion come into play. heck even the transpiration from the trees, and the natural evaporation from the pond will pay a significant role in the distribution of charges in aerosol molecules. All that considered unless you are flying in a situation in which the pollen count is so high (maybe even to the tune of 1000-10000 ppm, which may be possible in spring time "or pollination time") the build up from one flight should be negligible so long as you are doing your part to to remember to check and clean the drone. If you are regularly flying in this area it would be a good practice to clean the components regularly, as build up over multiple flights could definitely cause problems from the transmitter, the gimbals, even the prop motors could be effected. a little research from the EPA on "electrostatic forces in wind-pollination" https://cfpub.epa.gov/si/si_public_record_report.cfm?dirEntryId=161049
  3. Could you provide any more detailed information, Which controller bundle? This may help to narrow down the function of the piece.
  4. Hey @Agile Aerial Welcome to the club, We are located out of Massachusetts.
  5. Thanks, i just noticed i put up all BW ones, this week we will get some color photos up!
  6. I figured it would be nice to share some of our photos from time to time, so this will be the thread where we do so! the moon is from a Nikon D5100, i just liked it, the others are from a DJI Phantom 3 Standard
  7. It is really a damage mitigation system, that is to say if you reach the point of the parachute deploying you are far beyond worrying about crashing... that is now happening, even worrying about the tree and power line is actually secondary (while landing in a soft field would be nice, it is no longer the primary concern). If you are in a situation in which the parachute needs to deploy you are actually attempting to reduce the risk of a fatal or traumatic injury to yourself, onlookers, and non participants (the second level is damage to the drone / and property, but i would rather reck a drone than someones life). A drone falling through the air becomes a very dangerous weapon, and while the blades are capable of autorotation this will not significantly reduce the velocity, the parachute is the best bet here to a slower and therefore much less dangerous descent. truthfully the best way to lower this risk is to fly safe, and ensure you follow best practices, thereby reducing the overall chance of catastrophic failures.
  8. If it is an amendment to the current 333, which i believe it is... from what i have read these are taking upwards of 6 months, nearly as long as the original 333 process.
  9. Ok, so a small update here for insurance: I actually got a reply from Carson Lyons, Who is the VP of Aerospace at AIG! He was kind enough to inform me as to the process. AIG and most of the larger insurers do not service customers directly for aeronautical insurance. Instead, they prefer to have you and your company go through an insurance broker. This may seem like a more lengthy process than necessary, however, as Mr. Lyon's was kind enough to point out this actually benefits the consumer as they will be presented with a variety of coverage options that are tailored to their specific needs and coverage/liability protections. This way you will not pay through the nose for coverage that you never need. His suggestion is to search for "Aviation Insurance Agency in your state or major metro region," or "commercial insurance agents" in your area. This brought several up for me and i have reached out to a few and got a response in less than an hour. Not a quote as i didn,t prepare all the information yet (drone S/N) but quick contact and request for more info to get a quote. The one i contacted was AVION insurance, though i am in MA and cannot truly recommend any company as of yet. If this is truly a vision or necessity for you i would wholeheartedly recommend The courses Alan and UAVCOACH offer. As a professional educator i recognize great teaching and instruction, and Alan and his team have worked tirelessly to be able to provide high quality professional development for the drone world!
  10. I actually read an article on a scientist that studied swarming in bees and other animals, attempting to derive a mathematical model to find patterns in swarming. I'll see if i can find it as this was several years ago, but it was interesting to see how simple a model they ended up coming with. Essentially, very boiled down, if one unit keeps track of the distance in front, in back, above/below and to the sides between it and the next unit you could create pretty realistic swarming via computer modeling. This paired with technologies natural tendency to become more powerful, more prolific, and more compact leads me to believe this is a very possible future for nano drones.
  11. Not sure what system you are on but one way you could get this done is to utilize a point of interest IOC function, and then also utilize the Interval Timer setting, telling the drone to take photos every X seconds. By utilizing these two together with a little calculation you can get the exact number of photos at the overlap and side lap you want, fairly autonomously.
  12. I have reached out to AIG about their commercial Drone Liability insurance, i will gladly let you know what i find out.
  13. Alan, As usual you provide me with another invaluable resource. Watched these and was truly inspired... hope i can live up to what Jaime Brightmore is capable of!
  14. I have an opportunity to do some shooting for a friend, they are asking to get some time lapse photography as they build a small tower. They want to be able to condense one days worth of construction into a short video for presentations, I did not see an area for this in the forums but thought that it may be a good idea for the community for people to be able to share their experiences, tips & tricks, and best practices for advanced techniques! In order to accomplish a nice film we must consider a few things, after safety and area of operation considerations, that are present with the drone. The number one limitation you will run into in this case is the flight time, flights of 20-30 minutes will allow you to capture 20-30 minutes of time and lapse it by changing the frame rate at which it is captured (more on this in a second). One way to deal with this is to utilize multiple batteries and to "reload" the drone as needed. The nice thing here is depending on your time interval and total length of filming, you can keep the drone airborne and when you change out a battery, you wont really mess with the overall flow much, since there is a lot of time between consecutive photos, and a few missing will not kill the end result. There is a second option that will work in a pinch, but is not technically time-Lapse as the product at the end varies slightly in its visual properties. You could instead of taking photos at fixed intervals; take a video of the 20-30 minutes and speed it up at play back. This will condense time (taking a half hour and making it play back in 30 seconds) however since you are filming at 24 -30 FPS, you will get an ultra-smooth, albeit very fast playback of the same video. There are a few factors we must consider when setting up for our Time- Lapse shoot (with respect to the time lapse, you still need to consider safety, and lighting and all of that; but we will stay focused on the time lapse here). 1) Total Time to Film (domain) This is the entire length of the shoot start to finish, first picture to last. If you want to catch a sunrise it may be half an hour, if you want to catch the building of a house it may be multiple consecutive days of four or more hours, or even a few stills from the same locations over 30 days. 2) Time interval Between Shots This is the time between taking the next consecutive shot, it is related to the frame-rate or more aptly the amount of time compression (lapse) that we wish to accomplish. For example, if you take a photo every 10 seconds of a process that takes 1000 seconds total you will end up with a video that takes 100 seconds when finished (playing at essentially 10x speed, this does not figure in frame rate yet). 3) Total Number of Photos Taken This is the total number of photos required to shoot at the set time interval for the time Domain you wish to cover. 4) Total Time of End Product How long will the finished video be? 5) Frame- Rate of the Final Product What will the final product play at 24 FPS, 29.97 FPS, 30 FPS ? Now that we have these factors defined lets see how to use them and why they are important: Lets use an example: We will use a sunset as our example. We will aim for a 2 hour window to catch both before, during, and after (remember to always shoot through your shots!). We want to end up with a 60 second movie (@ 24 FPS) of the time lapse sunset. With this information we can determine the settings we will need to utilize, as well as how many batteries this would take to do continuously. One thing i will say is getting everything in terms of the same unit will help us out a lot here, in this case most of our things will be in seconds (time interval) so lets convert 2 hours into the equivalent number of seconds... Time in Hours * 3600 = Time in Seconds ( 60 mins per hour, and 60 seconds per minute = 3600 seconds per hour) in case you want to know where 3600 came from) 2 Hours * 3600 = 7200 seconds Total Time Next, we want to think about the end, this is always good practice, what do we want to get out of this? We said we wanted to end up with a 60 second clip for our final product. Using this and the frame rate for our final video we can figure out how many photos to take total. Final Product Length * Frame-rate (FPS) = Total Shots Taken 60 seconds * 24 frames per second = 1440 total shots needed for end product. Now we can determine the interval needed to squeeze exactly 1440 shots into our 2 hour window. To Do this we must take the total time and divide it by the total number of shots we need. Total Time / Total Shots Taken = Time Interval (seconds) 7200 s / 1440 shots = 5 Seconds per shot it should be noted this is actually going to cause an issue since the DJI App now only allows at minimum a ten second interval times since a recent update... App developers out there?! But for our purposes we will ignore this limiting factor, i will discuss how we plan to circumvent this later. Ok, so we now have figured out, the time interval, the total number of shots and for our purposes we will look at one last thing, the Time Compression Factor, that is to say how much will this video be essentially condensing or lapsing time. Total Time of Shooting / Total time of End Video = time Compression Factor 7200 s / 60 s = 120x This tells me that our video is 1/120 of the original time (actual time event was recorded over), in other words we should be seeing the video at about 120 times the rate it was actually occurring. This is neither here nor there but may be interesting to know. Lastly, if we want to know the number of batteries we take a safe estimate of 20 min flight time, over the 120 min we must fly... total time (min) / est. time per flight (min) = total number of charges (or batteries) 120 min / 20 min per flight = 6 charges (batteries) [Always be conservative here, more power is infinitely better than running out] So, In review we will have to set our time interval to shoot every 5 seconds, for a 60 second video playing at 24 FPS, which will condense 2 hours of real time (by a factor of 120)! Now for the practical, due to limitations of the 10 second per a shot minimum on the DJI APP, we have elected to utilize a two prong approach. First, we will utilize a NIKON D5100 DSLR on a tripod to shoot the entirety of our little project from a fixed position, this will give us time lapse from the entire day. Second we have decided to utilize the Phantom 3 to capture augmented time lapse from the aerial perspective. That is, we will fly for the 20-30 minutes focusing on "Details" of the construction, since we know we will have one camera devoted to the entire project we can think of our drone footage as spice added to our video. Allowing us to use the drone to capture interesting events and angles, that will supplement the main Time Lapse From the Nikon camera, This should provide us with a more interesting final product as we can cut between time lapse of the entire project, and time lapse of details provided by the drone. PS... Triple check your batteries are fully charged!
  15. Exactly, the N Number is a unique identifying tag for that aerial vehicle, each vehicle requires a seperate N Number. If you are only operating for recreation the one FAA Pilot Registration number may be utilized across multiple vehicles as it is more of an ownership tag than identifier of individual devices.
  16. If you are still looking for a project that might be useful i find myself in want of a flight app with more individual control, but with automation in mind. That is a way to create Bezier curves for flight paths, or regular geometric patterns for flight where you can set the amount of angle/distance between consecutive photos, and have the app automatically take the photos at the predetermined angle or distance set through the app. DroneDeploy and Pix4d capture are knocking on the door but are still limited in the variety of preset patterns. even something that could take a drawn area of operation and use an algorithm to determine the best coverage needed for photogrammetry, or ortho mosaic and elevation maps, and create the flight plan for you. Just an idea.
  17. Hi Everybody, My name is Scott Lashmit, and i am a drone pilot! I live in MA and have begun my own business called Remotely Possible LLC. (@DronePossible & itsremotelypossible.com). We are presently in the vacuum of waiting for the 333 exemption from the FAA, but should be on track for April-June for acceptance! We do photo and video for events, and venues, as well as photogrammetry for 3d models and volumetrics. We are also actively looking into multiple spectrum analysis to partner with research universities and colleges, for in depth environmental analysis. In addition to my drone work i am a full time High school science teacher, who is passionate about STEAM education and advancing our public education system into the 21st century. We offer professional development to schools, teachers, and universities, as well as develop standard aligned curricula. We have developed a course for high schools to teach engaged students in a hands on way how to safely, legally, and professionally (in a professional manner) fly drones and develop novel uses for them in industry. We already have one school that will be running the course next year, and are looking to reach more schools. That is a "short" intro to who we are, thanks to Alan and all of the wonderful people at UAVcoach for putting together a wonderful and vibrant community of like minded droners!
  18. Quick Question, this is the only topic i am allowed to comment in is there a setting i need to change or is this on UAVcoaches end? Thanks