Hey guys. I will enter a university competition called “Teknofest Fighting UAV” in this summer.
To sum up, its a competetion that fixed wing rc planes fly, get others coordinates from master server, approach using gps, find them using OpenCV and Yolo algorithms, lock and track autonomously from behind and get a 4 second video of them and that counts as we shot them. If we shot them we get points, if we get shot we lose points.
Almost every team use Jetson’s on their plane’s to process the image and find their targets. I dont like that because of the weight increase and price.
I thought of an idea to send video using OpenHD to my ground control station, process it with my GPU which is better than Jetson, and send movement commands using telemetry to track the enemy. This way I can get rid of Jetson on my plane.
I have a concern that latency can be a problem while tracking. Most of the OpenHD setups I have seen has around 150ms latency. Image processing on my PC will add to that and sending MAVLink commands add some latency too. So, I expect around 200ms latency. (We will be flying around 1KM radius range)
I asked on Telegram group and they gave me an advice to use Radxa boards for both air and ground. I could not find a latency test on Radxa Rock5 but I have seen a forum thread which says most of the latency caused by encoding/decoding of the video and I know Radxa is a lot better than RPi on that.
Thats all the info, here is my questions:
1- How much latency I will get using Radxa Rock5?
2- Do you think 200ms is too much while object tracking?
3- I cant find any AC56 on my country. Which WiFi adapter would you advise instead Can I rely on other RTL8812AU boards on AliExpress?
4- Does turning OSD off decrease latency?