Viability Analysis of Wireless Communication Hardware for Multi-rotor Swarm Integration

Santiago Giraldo Author

07/28/2021 Added

28 Plays

Description

Poster Presentation 2021 REU Santiago Giraldo Viability Analysis of Wireless Communication Hardware for Multi-rotor Swarm Integration

Searchable Transcript

Search:

[00:00:01.350]Hello, this is Santiago. And today I will be presenting my research poster titled
[00:00:06.090]Viability Analysis of Wireless Communication Hardware for Multi-rotor Swarm Integration
[00:00:13.210]Before I begin, I'd like to tell you a little bit more about myself.
[00:00:17.530]I grew up in Medellin, Colombia moved to Cambridge, Nebraska, there I graduated high school
[00:00:24.090]and now I am a rising sophomore majoring in computer science at the university of Nebraska-Lincoln.
[00:00:30.872]After my freshman year at Lincoln,
[00:00:33.330]I joined this summer research program as a part of the applied unmanned systems.
[00:00:38.680]So let's begin.
[00:00:42.160]There are many forms of wireless communication, such as
[00:00:46.590]centralized, decentralized, and distributed. As you can see in figure one
[00:00:51.329]Wireless communications are very important when dealing with drones
[00:00:56.180]particularly those in swarms
[00:00:59.340]having good communication is crucial, especially
[00:01:01.900]when the information we want to transmit can help swarms coordinate,
[00:01:06.630]avoid conflicts taking advantage of object avoidance, and accomplish tough tasks.
[00:01:14.370]Wireless communication schemes have been demonstrated previously.
[00:01:18.030]However, we have not yet seen an implementation of a decentralized communication scheme
[00:01:24.100]on novel multi-agent hierarchal controllers.
[00:01:30.690]With that being said,
[00:01:31.969]we seek to analyze an operational performance and determine the
[00:01:36.960]viability of wifi and XBee field radio.
[00:01:41.700]These methods of wireless communication shown in figure two
[00:01:45.610]will be helping us throughout the implementation of the novel controller.
[00:01:52.690]Our approach to determine the viability regarding Wi-Fi and XBee field radios
[00:01:57.810]includes the following
[00:02:00.290]Some factors which are important when speaking of wireless communications are
[00:02:04.020]patch sizes, which are able to be made, speed of the file transferred.
[00:02:10.680]And the reliability of said transfer.
[00:02:14.340]We want to measure each of these factors at different distances.
[00:02:19.260]When speaking of sending patches over wifi,
[00:02:22.190]we're able to test these distances including,
[00:02:25.170]including 0 10, 15 and 20 meters
[00:02:30.650]To test this,
[00:02:31.890]we established a program to start the file transfer and
[00:02:36.360]measure the patch size possible alongside the
[00:02:41.100]time that it took for that to be sent
[00:02:44.030]adjacent to wifi tests,
[00:02:45.730]we are able to run a similar version of said program,
[00:02:49.560]to transmit the corresponding patches
[00:02:53.040]over XBee field radios.
[00:02:57.000]Now that I've explained how we are able to go about our tests,
[00:03:01.360]we can break down the data and see what we received back from them.
[00:03:07.000]As we look at figure four,
[00:03:08.350]we can see that the patch size and transmission times are directly related
[00:03:15.041]For our tests with Wi-Fi.
[00:03:17.650]We utilized a router operating at a relatively high frequency of
[00:03:22.480]2.4 GHz. On the other hand, as you can see in figure five,
[00:03:28.060]we tested the extra field radios when they were operating at
[00:03:32.630]approximately a frequency of 900 MHz.
[00:03:38.910]Some things to take into consideration is that when taking these two
[00:03:43.590]sets of communication hardware to the field and running our experiments,
[00:03:49.100]we found out that the transmission time and size is
[00:03:53.135]very dependent on distances.
[00:03:55.910]Therefore making Wi-Fi a viable choice,
[00:03:59.337]within 20 meters
[00:04:02.220]given this, when there needs to be a large Docker patch,
[00:04:05.730]it would be recommended to use Wi-Fi.
[00:04:08.240]Of course,that would be at close to since there's only.
[00:04:12.270]However, when
[00:04:13.140]we are dealing with smaller patch sizes,
[00:04:15.600]it would be completely fine to stick with XBee field radios.
[00:04:20.310]To wrap this up,
[00:04:21.559]we recommend the implementation of both Wi-Fi and XBee field radios,
[00:04:27.780]and just using the corresponding one,
[00:04:30.630]depending on the file size and the distances that you're dealing with in the field
[00:04:37.790]more objectives which we plan to encounter in the near future are
[00:04:43.250]taking acloser look at the error rate and received signal strength indicator,
[00:04:49.740]as well as the implementation of swarm algorithms to improve
[00:04:54.177]over-the-air communication,
[00:04:56.670]to help us reduce bit error rate and increase the received signal
[00:05:01.440]strength indicator.
[00:05:03.900]I would like to take an extra second to thank the National Science Foundation
[00:05:08.640]for making it possible for me to have this opportunity.
[00:05:14.875]At this time,
[00:05:15.875]I would like to thank my graduate mentors, Daniel Rico, and Chandima Fernando,
[00:05:21.860]my advisors, Dr Detweiler and Dr. Bradley,
[00:05:26.690]as well as other members of the Nimbus lab.
[00:05:31.010]And with that being said,
[00:05:32.300]I would like to thank the audience for attending my poster presentation.
[00:05:36.200]Thanks for watching!

The screen size you are trying to search captions on is too small!

You can always jump over to MediaHub and check it out there.

Tags:
Research
Drones
NIMBUS Lab
Nebraska Virtual Summer Research Symposium 2021

Comments

0 Comments

Viability Analysis of Wireless Communication Hardware for Multi-rotor Swarm Integration

Description

Searchable Transcript

Comments icon comment

Related Channels

Comments