Rear Parking Sensors - what they really look like

[kpatz]

Here's a pic of the sensors used in an Audi's rear parking sensor system.



They are the small round things in the bumper cover.

Why can't the aftermarket "parking sensor" makers (aka laser jammers) use heads like this? They're quite stealth, and if you're caught, you can really say they're parking sensors.

Even if they have to be dark colored to pass IR light, why not make jammer heads that are tiny like that?

[snoopyc4]

Why not make jammer heads that are tiny like that?

Because I think a jammer head that size would not be big enough to hold the components necessary to both receive the laser signal and then then jam it. If you look at a LI head, the receiving component of it (the bubble) is almost as big as the parking sensor pic you just posted.

[nesQ]

Actually, they exist and I have them here waiting to get installed on my new car.
They are in black and seems like to fit to original parking sensor holes. I can't attach a image yet (need min. 15 posts) but I can post a picture of it when I have 15+ posts.

[kpatz]

Because I think a jammer head that size would not be big enough to hold the components necessary to both receive the laser signal and then then jam it. If you look at a LI head, the receiving component of it (the bubble) is almost as big as the parking sensor pic you just posted.

The bubble is just a lens. The photodiode that actually picks up the signal is about the size of a LED (5mm). The laser diode that does the jamming is about the same size. If the heads are tiny, like the factory parking sensors, more than 2 could be placed in the bumper so each individual head doesn't need to be as sensitive/powerful.

The rest of the head contains the supporting electronics, which could be hidden behind the bumper cover, so only the photodiode sensor and jamming diode are exposed.

NesQ, even with <15 posts, you can attach images to your post.

[eire05]

Because I think a jammer head that size would not be big enough to hold the components necessary to both receive the laser signal and then then jam it. If you look at a LI head, the receiving component of it (the bubble) is almost as big as the parking sensor pic you just posted.

The bubble is just a lens. The photodiode that actually picks up the signal is about the size of a LED (5mm). The laser diode that does the jamming is about the same size. If the heads are tiny, like the factory parking sensors, more than 2 could be placed in the bumper so each individual head doesn't need to be as sensitive/powerful.

The rest of the head contains the supporting electronics, which could be hidden behind the bumper cover, so only the photodiode sensor and jamming diode are exposed.

NesQ, even with <15 posts, you can attach images to your post.

I presume NesQ is referring to this:

Stinger introduces the DSI Computer




Wonder if it's any use? Either way that stinger is serious money!

[nesQ]

I presume NesQ is referring to this:

Stinger introduces the DSI Computer

Wonder if it's any use? Either way that stinger is serious money!

Yes, that's the Stinger DSI. Because it has it's own spectrum analyzer it's very expensive. (so are the fines here for speeding )
It's the best (and only) combined system you can get at the moment. I will start my own thread about it as soon as I'm gonna install it in my car .

[supercowpowers]

So that's what those things are for? I just thought they were decorative, sort of like the fake lugnuts on plastic wheel covers...

[swarga]

Why not make jammer heads that are tiny like that?

Because I think a jammer head that size would not be big enough to hold the components necessary to both receive the laser signal and then then jam it. If you look at a LI head, the receiving component of it (the bubble) is almost as big as the parking sensor pic you just posted.

Each of those little "buttons" could easily hold 2 or 3 LEDs/LASER diodes plus one detector. The clusters themselves may be smaller, but with several of these clusters spread out across the entire bumper I would think the coverage area would be greatly improved.

I'm impressed. That Stinger DSI is some real out-of-the-box thinking. Pun intended.

[Offshore]

Wow....this is a cool set-up, does it really work???

[gkb]

Waiting to see your setup nesQ