Wifi vs bluetooth drone data processing
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Likewise, total stations can make more accurate measurements than any drone photogrammetry tool but are nowhere near as efficient. Using laboratory-grade laser measurement tools can get accuracy down to 0.00001’, but of course would take years to survey a whole site. There is no such thing as “the best” accuracy on a site because there are always trade-offs. I need to fly low because I need THE BEST accuracy on this project.įalse. Flying too low in partly vegetated areas, or too low with not enough GCPs, or with too high overlap can all cause for WORSE accuracy, in addition to taking more time to collect and process. Collecting too much data often leads to WORSE overall accuracy. At the very least, taking more photos doesn’t hurt, right?įalse. This often leads to additional dollar costs for processing as well. Everything takes longer: field data collection, data processing, uploading and downloading files, importing files into other software. Processing time increases, and file sizes increase. Someone else (like Aerotas) is doing my data processing, so it doesn’t hurt me if I take too many photos.įalse. Even flying a site 10 times won’t make up for mission planning errors like this. For example, improper flight altitude, poor mission planning area, and bad GCP placement are all not solved by extra flights. If you fly a site twice, often there are mistakes that aren’t fixed by a second flight. I don’t want to have to refly a site, so I’ll just fly it twice just in case.įalse. If there are mistakes in mission planning, for example flying too low or setting too few ground control points, more photos will NOT solve any of the problems. The take away is that you can spend less time in the field, spend less time processing the data, and get a more accurate deliverable by collecting fewer images.Ĭommon Misconceptions More photos can make up for other mistakes.įalse. This may sound counter-intuitive, but at Aerotas we have processed tens of thousands of projects and can say with confidence that more data is not always better when it comes to drone data processing. However, there are a number of common misconceptions about data collection and processing that lead surveyors to collect too much data. The drone benefit of field time savings is real and comes from the ability to substitute a quick drone flight for the time-intensive process of walking a grid over an entire site. So the goal is to get about 0.1' vertical accuracy in the fastest most efficient way possible. The surveyors that we work with are not running a research project they are running a business and need the drone to save them time and money so that they can be more profitable.
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However, if you want your drone program to take up less time and cost less money, then the objective is to use as little data as possible to get the results you need. In a research setting with an unlimited budget and no project deadlines, collecting more data is an option. Human resources, software, and time all cost money, and processing more data takes more of all three.
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Too much data Less data, more accurate deliverables
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