# Any kind of sensor to detect really fast moving objects with minimum 25 m radius sub 1.000$? What we are specifically interested in is for our quad-copter to be able to detect and maneuver to avoid (maneuverability is based on our custom algorithms) objects flying towards it with great speeds. A paintball gun projectile for example. Regarding the coverage of all possible directions, we are not concerned whether or not it will be achieved with one or many sensors. What we are interested in is if a sensor that can do that exists and is suitable to be mounted on-board a drone. • LOL. You're asking for a sensor that can sense a paintball pellet within 25 m for less than$1? I'm hoping that somebody has such a sensor because I'd buy a bunch of them. None of the sensors that I am familiar with can sense something that small and fast at 25 m. None of them can do it at one meter. The closest one that I can think of is a very fast camera. – NomadMaker Jun 12 '18 at 1:05
• @NomadMaker, that number may be a thousand dollars – jsotola Jun 12 '18 at 1:44
• @Panteleimon Stamatakis Have you considered dynamic vision sensors? (event based cameras). While as of now, they are above 1000 USD, It is rumored that Samsung is going to come up with cheaper event cameras this year. – HighVoltage Jun 12 '18 at 4:09
• Sorry, I'm used to the comma as the separator for the thousands. I like the dynamic vision sensors. They are considerably above \$1,000 USD, but all technology comes down in price, eventually. I'm wondering if a fast enough traditional camera plus perhaps an FPGA could be bought for under \$1,000? Looking for a fast paint-ball pellet at 25 meters would require a lot of computer power. – NomadMaker Jun 12 '18 at 6:01
• @NomadMaker Yes, I was referring to one thousand dollars. So radar or lidar is out of the question for this kind of stuff then? As far as compute is concerned, we are opting for the nVidia Jetson tx2. Do you think it is under-powered for this particular task? – Panteleimon Stamatakis Jun 12 '18 at 7:13