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Road/driving tracking devices
(lemmy.ml)
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this post was submitted on 22 Feb 2026
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Privacy
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The large flat one looks like radar to me. I hadn't heard of radar being used with PTZ cameras. But you can also use it standalone to measure traffic flow.
If it isn't radar, it's something with a large, flat antenna (probably a phased array). The other two options I can think of are a long-range RFID scanner or a point-to-point network connection.
Yeah it’s quite hard to tell. The shape is kinda generic so anything could be behind all that plastic!
Because of how wide and thin it is, it looks like a phased antenna array to me. It's a way to create cheaper, performant antennas. You see this form factor with a bunch of RF applications in UHF to EHF range.
Here's an example of a random mmWave radar board. Imagine a plastic case over this to keep out dust and rain.
https://www.alibaba.com/product-detail/60Ghz-long-distance-Millimeter-wave-radar_1601046927371.html