Topic: Project No Blind Spots

In trying to improve driver vision inside the car I've dived down this insane rabbit hole of adding cameras and screens to our car. Figured I'd share for anyone interested. Note: we're not getting rid of mirrors or anything else, this is just supplemental and a fun project.

So, goals of the project.
1. provide a single location to look at that would give you a 180degree+ view of what is around you
2. do it relatively cheaply
3. Don't discourage the use of other tools like mirrors for the driver.


What I came up with. Three 5" screens and 3 backup cameras. Two cameras are mounted under the side mirrors, and one is mounted to the licence plate bracket. These then feed three screens that mount to the windshield bar of the roll cage and sit right above the existing mirror.

I am using these screens:
https://www.amazon.com/gp/product/B01E3 … &psc=1

There are a bunch of 5" screens on amazon, from $16-$30, they're all the same cheap chinese 480p screen. The resolution is low, but that doesn't matter, you just need to be able to see if there is a car there, not read their stickers.

For cameras, I have two of these for under the mirrors:
https://www.amazon.com/gp/product/B06XN … &psc=1

and one of these for the back of the car
https://www.amazon.com/gp/product/B0793 … &psc=1

notice the cameras are all min 170deg view angle. this should give me a bunch of overlap between the screens which should help.


So the easy route here would be to just take things as they are and mount them and run the wires. It would work perfectly fine that way.But I can't do simple, I have to do complicated. So first thing I did was make my own case for the screens. I added a feature that mates to the roll bar tubing and a slot to hold a hose clamp. This will let me mount directly to the windshield bar, not mess with suction cups or other nonsense.

https://i.imgur.com/Zq4zJls.jpg
https://imgur.com/YWxFDGl.jpg
https://imgur.com/nKNpLtx.jpg

I've since tweaked the model a little to add gussets to those features and strengthen them, but for a test print, that was enough. And yes, PETG strings like crazy on my printer. I don't have those settings nailed down yet.


Next, I didn't want to run 3 video and 3 power cables up the roll cage. So I changed the wiring. I have a triple RCA jack that takes in the video signals, then sends them to a CAT6 Ethernet chord that runs up the roll cage and breaks out into three headphone jacks that feed power and video to each screen. Unnecessary? yes. The wrong connectors? likely. Does it work? yes.

Cable laid out
https://imgur.com/oX5e5ry.jpg

Testing from earlier tonight
https://imgur.com/dBa64Kl.jpg

I went with a right angle connector for space reasons
https://imgur.com/ZtvrivK.jpg


The side camera mounted on a parts side mirror. I have a bunch of varying degree angle shims to align it with once I install on the car for real.
https://imgur.com/j71bijl.jpg


What I have left to do
The rest of my screens and cameras are arriving tomorrow. I have 2 of 3 of the screen cases printed, with the third started. Tomorrow I can wire the screens into the printed cases. I need to print a small box to hold the RCA and RJ45 connectors that will live somewhere under the passenger dash. And then I need to install everything in the car, likely in a couple weeks.



Known issues this will have:
In the wet the cameras will be hit or miss. Since our car is a wagon I already know the back of the car sucks up spray and the camera will be varying degrees of useful. not a ton I can do there.

20+ Time Loser FutilityMotorsport
Abandoned E36 Build
2008 Saab 9-5Aero Wagon
Retired - 1989 Dodge Daytona Shelby 2011-2015 "Lifetime Award for Lack of Achievement" IOE, 3X I got screwed, Organizer's Choice

Re: Project No Blind Spots

Oddly enough, Tesla autopilot cameras have a similar issue to being obscured by crap in the rear camera.  Someone came up with an overly complicated method to blow air across the camera lens.  If you can figure out a lemon's friendly way to blow air across the lens, it will be surprisingly clear.

Apparently my name is really "Craigers".  Who knew?
We might be yellow, but at least we are slow
I'm a WINNER!

Re: Project No Blind Spots

solman244 wrote:

Oddly enough, Tesla autopilot cameras have a similar issue to being obscured by crap in the rear camera.  Someone came up with an overly complicated method to blow air across the camera lens.  If you can figure out a lemon's friendly way to blow air across the lens, it will be surprisingly clear.

The tv racecar cameras using a rotating cover that is cleaned when it rotates, so it rotates a cleaned cover over the lens.

I've had this 270-degree camera view in the 'rearview' mirror idea for years, but have never gotten to try and build one.  I have been surprised it hasn't been done (that i have seen).  I think the vibration differences between the cameras and views will make integration of the video difficult, but maybe not with todays cpu power.

I have been thinking of a much simpler idea, of using large side view mirrors, and since we don't have side windows, the mirrow can straddle the inside and outside.  This should be easy to test.

Re: Project No Blind Spots

solman244 wrote:

If you can figure out a lemon's friendly way to blow air across the lens, it will be surprisingly clear.

CPU cooling fan into a baster tube, and split the output via tubing to each mirror? Integrate next to a defroster vent...

Re: Project No Blind Spots

nimblemotorsports wrote:

I have been thinking of a much simpler idea, of using large side view mirrors, and since we don't have side windows, the mirrow can straddle the inside and outside.  This should be easy to test.

I 100% support good mirrors. I love our mirror setup honestly. This is just to supplement it and it gave me a project to work through

20+ Time Loser FutilityMotorsport
Abandoned E36 Build
2008 Saab 9-5Aero Wagon
Retired - 1989 Dodge Daytona Shelby 2011-2015 "Lifetime Award for Lack of Achievement" IOE, 3X I got screwed, Organizer's Choice

Re: Project No Blind Spots

I'm not going to worry about keeping the cameras clean yet. I want to get a race done with the basic setup to see how it does. I'm sure there will be some vibration, but I don't expect it to be enough to care. I'm not looking for perfect 4k video here, just good enough to be able to look up and go "there's someone in my passenger blind spot."


Learned a lesson today. Got my two other screens, which are a different one than the first I bought. they are in fact different dimensions, just different enough to be annoying. So I am printing new cases to fit them. Check back in 24 hours and they'll be done.

20+ Time Loser FutilityMotorsport
Abandoned E36 Build
2008 Saab 9-5Aero Wagon
Retired - 1989 Dodge Daytona Shelby 2011-2015 "Lifetime Award for Lack of Achievement" IOE, 3X I got screwed, Organizer's Choice

Re: Project No Blind Spots

This is crazy. I like it. Looking forward to seeing how it works out.

Re: Project No Blind Spots

I think I have all the printed parts done. The last screen case wrapped up some time this morning and I just have to pull all the support material off it.

Printed a simple enclosure to hold the connectors, it will get hidden under the passenger dash somewhere.

https://imgur.com/EhqolNC.jpg


Last pieces I need, some filters for passing power to the system to try and keep noise out of the signals. The saab comes up from my dad's house the beginning of march for a 2 week thrash prep for PittRace and I should be able to get this system installed.

20+ Time Loser FutilityMotorsport
Abandoned E36 Build
2008 Saab 9-5Aero Wagon
Retired - 1989 Dodge Daytona Shelby 2011-2015 "Lifetime Award for Lack of Achievement" IOE, 3X I got screwed, Organizer's Choice

Re: Project No Blind Spots

Lemon_Newton-Metre wrote:
solman244 wrote:

If you can figure out a lemon's friendly way to blow air across the lens, it will be surprisingly clear.

CPU cooling fan into a baster tube, and split the output via tubing to each mirror? Integrate next to a defroster vent...

CPU fans don't generate much pressure, if you duct them too much they generate a lot of turbulence but not much flow. Automotive HVAC fans are designed to such through filters and blow through pipes, so the impellers and motors should work great for your application.

Re: Project No Blind Spots

All ready to go in the car.

https://imgur.com/vEwhMUz.jpg


only thing I'll change is swapping out the stupid long RCA cables for some shorter ones on the side cameras. No need to bundle 30ft of cable somewhere. the flying leads out of the RCA>Ethernet box are power and ground leads. I could integrate a bunch of barrel connectors, but the spades will hold better in the car. There's a power for each camera, then a 12V in and a unified ground.


Car will be here March 2nd for install along with a million other projects like swapping the timing chain, remounting the seat, improving brake ducts, better oil cooler, and half a dozen other little improvements.

20+ Time Loser FutilityMotorsport
Abandoned E36 Build
2008 Saab 9-5Aero Wagon
Retired - 1989 Dodge Daytona Shelby 2011-2015 "Lifetime Award for Lack of Achievement" IOE, 3X I got screwed, Organizer's Choice

Re: Project No Blind Spots

We did something similar, but we only had one screen and a single, relatively wide angle camera facing behind on the rear hatch of our Golf. Those cheap screens can be hard to see in full light. I’ll be interested to see how this turns out.

Captain, For Parts Only (Team FPO)
#111 VW Golf - Currently Orange with tiger stripes (Calvin and Hobbes theme)

Re: Project No Blind Spots

GoFastEnthusiast wrote:

We did something similar, but we only had one screen and a single, relatively wide angle camera facing behind on the rear hatch of our Golf. Those cheap screens can be hard to see in full light. I’ll be interested to see how this turns out.

That's my biggest worry honestly. I know the screens are cheap little POSs. But we'll see, hopefully even in adverse conditions you can glance up and notice if there's a car sitting in a blind spot.

20+ Time Loser FutilityMotorsport
Abandoned E36 Build
2008 Saab 9-5Aero Wagon
Retired - 1989 Dodge Daytona Shelby 2011-2015 "Lifetime Award for Lack of Achievement" IOE, 3X I got screwed, Organizer's Choice

13 (edited by n0m4d 2019-02-19 05:52 AM)

Re: Project No Blind Spots

@theengineer How many times a week are you at http://www.esssurplus.com/?

30 entries since 2009
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Re: Project No Blind Spots

Honestly? I've never been. I've been told about it many times and just never get around to visiting.

20+ Time Loser FutilityMotorsport
Abandoned E36 Build
2008 Saab 9-5Aero Wagon
Retired - 1989 Dodge Daytona Shelby 2011-2015 "Lifetime Award for Lack of Achievement" IOE, 3X I got screwed, Organizer's Choice

Re: Project No Blind Spots

TheEngineer wrote:
GoFastEnthusiast wrote:

We did something similar, but we only had one screen and a single, relatively wide angle camera facing behind on the rear hatch of our Golf. Those cheap screens can be hard to see in full light. I’ll be interested to see how this turns out.

That's my biggest worry honestly. I know the screens are cheap little POSs. But we'll see, hopefully even in adverse conditions you can glance up and notice if there's a car sitting in a blind spot.

They are good enough for that, a quick glance and generally you can see if there is a large object in the screen or not.  They are absolutely not a replacement for mirrors though (obviously).

You can get a preview of how it looks in our car here, keeping in mind that the gopro in this case is not within the ideal viewing angle, so the brightness is even lower: https://www.youtube.com/watch?v=mEGI8T3sFgI

We are most likely going to remount that to be to the right of the wheel, near our switches and with a glare hood of some sort (if we ever find the time).

Captain, For Parts Only (Team FPO)
#111 VW Golf - Currently Orange with tiger stripes (Calvin and Hobbes theme)

Re: Project No Blind Spots

I 100% agree this should not be a mirror replacement. There's always a chance something fails with electronics. They are going to be mounted between the roll bar and the existing mirror, so if you glance up, you're looking at the mirror anyway.

terrible photo from when I was playing with locations.
https://imgur.com/JMlQNSC.jpg

20+ Time Loser FutilityMotorsport
Abandoned E36 Build
2008 Saab 9-5Aero Wagon
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Re: Project No Blind Spots

Dig this project.  Anxious to see more. 

For inspiration, the big boys have some pretty cool video-rear-view setups.  In this in-car footage of the Corvette C7.R at Daytona way back in 2014, you can see how the images are processed real time and indicators are added to the video to let the driver know if the car behind is closing or falling away.  Also big left/right arrows to indicate on which side a car is passing.

https://youtu.be/pxOl0b8K6FY?t=522

10x loser (Arse-Freeze '11 - Vodden '15) 1x WINNER! Arse-Freeze '14 in the Watermelon Volvo Wagon
Swedish Knievel Skycycle('90 Volvo 740 Wagon)

Re: Project No Blind Spots

Yea, the stuff they're adding to the pro cars is pretty trick. i got the idea first from the LMP1 cars when they abandoned mirrors and went to screens for the full cockpit cars. The real time processing and overlay stuff is awesome, but I do NOT have the skills required to do that. I am not a software person, not by any stretch. If someone wants to take a stab at designing such a system on the cheap I would 100% be willing to try it.

20+ Time Loser FutilityMotorsport
Abandoned E36 Build
2008 Saab 9-5Aero Wagon
Retired - 1989 Dodge Daytona Shelby 2011-2015 "Lifetime Award for Lack of Achievement" IOE, 3X I got screwed, Organizer's Choice

Re: Project No Blind Spots

Can you not put the rear camera on the inside of the tailgate looking backward?
No as easy to mount as the license plate mounts, but it'll stay cleaner during the race.

Capt. Delinquent Racing
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Re: Project No Blind Spots

TheEngineer wrote:

I got the idea first from the LMP1 cars when they abandoned mirrors and went to screens for the full cockpit cars.

Hah, that's the same inspiration for ours.

The real time processing and overlay stuff is awesome, but I do NOT have the skills required to do that. I am not a software person, not by any stretch. If someone wants to take a stab at designing such a system on the cheap I would 100% be willing to try it

Hmm, that's a tempting project.  I'll add it to the "That would be cool if I ever get around to it" list.

Captain, For Parts Only (Team FPO)
#111 VW Golf - Currently Orange with tiger stripes (Calvin and Hobbes theme)

Re: Project No Blind Spots

DelinquentRacer wrote:

Can you not put the rear camera on the inside of the tailgate looking backward?
No as easy to mount as the license plate mounts, but it'll stay cleaner during the race.

I could. But I don't think the view will be as good. I think it'll get it's peripherals cut off a bit more. But I can always stick it there and see what it looks like. We do still have the rear wiper installed after all.

20+ Time Loser FutilityMotorsport
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22 (edited by nimblemotorsports 2019-02-19 03:53 PM)

Re: Project No Blind Spots

gump wrote:

Dig this project.  Anxious to see more. 

For inspiration, the big boys have some pretty cool video-rear-view setups.  In this in-car footage of the Corvette C7.R at Daytona way back in 2014, you can see how the images are processed real time and indicators are added to the video to let the driver know if the car behind is closing or falling away.  Also big left/right arrows to indicate on which side a car is passing.

https://youtu.be/pxOl0b8K6FY?t=522

Nice touch on the indicators. It still looks like just a single camera view, not the 180-degree view combination of multiple cameras, and still a blind spot it looks like as toward the end the car trails off on one side and doesn't appear in the view until well behind.

I also noticed they implemented another idea i had 20 years ago, which was to make a tach display as a light bar.  I built one that swept along the rear of the windshield, it was my first electronics project.
Used analog circuits!

Re: Project No Blind Spots

nimblemotorsports wrote:
gump wrote:

Dig this project.  Anxious to see more. 

For inspiration, the big boys have some pretty cool video-rear-view setups.  In this in-car footage of the Corvette C7.R at Daytona way back in 2014, you can see how the images are processed real time and indicators are added to the video to let the driver know if the car behind is closing or falling away.  Also big left/right arrows to indicate on which side a car is passing.

https://youtu.be/pxOl0b8K6FY?t=522

Nice touch on the indicators. It still looks like just a single camera view, not the 180-degree view combination of multiple cameras, and still a blind spot it looks like as toward the end the car trails off on one side and doesn't appear in the view until well behind.

I also noticed they implemented another idea i had 20 years ago, which was to make a tach display as a light bar.  I built one that swept along the rear of the windshield, it was my first electronics project.
Used analog circuits!

That video is from 2014. I'm sure whatever is in the current car is that more bitchen.

As for the light bar rev indicator, I just bought one of these for 25 euros for another project.  Works great.  https://www.lskelectronics.com/revcounter-board-lsk5005

10x loser (Arse-Freeze '11 - Vodden '15) 1x WINNER! Arse-Freeze '14 in the Watermelon Volvo Wagon
Swedish Knievel Skycycle('90 Volvo 740 Wagon)

Re: Project No Blind Spots

Almost done. Working on aiming and mounting the side cameras. Still too low facing, but the angles are right. The box and radiator you see on the screen are directly out the driver window, so I have a view looking right down the side of the car, all the way to directly beside the driver. Should make for a good view.

https://imgur.com/9L58v5q.jpg

They'll be mounted here under the mirror. I'll find some way to fill in that gap from trying to aim the camera right. looks awful as it is.

https://imgur.com/tvO6sAW.jpg

20+ Time Loser FutilityMotorsport
Abandoned E36 Build
2008 Saab 9-5Aero Wagon
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Re: Project No Blind Spots

I should have everything wired in and done by Saturday. Got the rear camera installed on the hatch. have new side cameras coming that I can aim easier. The screens are in and wired. So far I'm liking how it's coming out.

20+ Time Loser FutilityMotorsport
Abandoned E36 Build
2008 Saab 9-5Aero Wagon
Retired - 1989 Dodge Daytona Shelby 2011-2015 "Lifetime Award for Lack of Achievement" IOE, 3X I got screwed, Organizer's Choice