Blind Spot Monitoring System

Nomad33fw

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I've searched this forum and google and can't find anything about this, figured some electronic genius here could help. I'm fairly competent with electronics but know that I couldn't be the first to think of this.

We already have a multi sensor reverse monitor system. Mine has three lights, one for right, left, and center. It seems to me that I could add two sensors on the sides that come on only when the vehicle is in drive instead of reverse. If these sensors sensed and object we could illuminate a light mounted in view of the appropriate side view mirror.

Does anyone have a wiring diagram, or any information on where the reverse sensor module is located?
 
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No wires, no fuss. Works every single time. Even identifies what type and color of vehicle is in your blind spot. Only problem: Cost. It costs between $2 and $3 depending on where purchased. That's for the pair. It does require you to be semi responsible for yourself though and actually pay attention while you are driving.
 

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The reverse sensors don't emit a far enough signal to bounce off cars as far away as in another lane. As mentioned, properly adjusted mirrors along with keeping your head on a swivel are proven methods.
 
EXACTLY. Once you do this you will never need those little mirrors again. It seems weird at first not seeing the side of your truck in the mirror but the learning curve is quick!

Let me know how backing down a hill with rocks on one side and trees on another without a spotter is going to work without those little mirrors lol. Even backing between two cars is easy with those convex mirrors. Sure, adjusting them right is great for highway. For blind spots and ground beside you those mirrors are key, especially backing up trying to see the ground on the passenger side.
 
Let me know how backing down a hill with rocks on one side and trees on another without a spotter is going to work without those little mirrors lol. Even backing between two cars is easy with those convex mirrors. Sure, adjusting them right is great for highway. For blind spots and ground beside you those mirrors are key, especially backing up trying to see the ground on the passenger side.

I'll let you know- it works just fine for me. Those mirrors are for sissies (IMO), and YES I know how big you are and you know what? :cheers:

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Let me know how backing down a hill with rocks on one side and trees on another without a spotter is going to work without those little mirrors lol. Even backing between two cars is easy with those convex mirrors. Sure, adjusting them right is great for highway. For blind spots and ground beside you those mirrors are key, especially backing up trying to see the ground on the passenger side.

But when you're in reverse at least you get the rear view camera. I have backed down a hill with rocks on both sides and ice beneath me without those little convex mirrors or a spotter :D
 
But when you're in reverse at least you get the rear view camera. I have backed down a hill with rocks on both sides and ice beneath me without those little convex mirrors or a spotter :D

I've got a plan (money dependent) to buy some limited side mirrors, install custom led lighting and get some custom ground mirrors with a bifocal convex treatment. Already talked to the mirror shop about it.
 
I'll let you know- it works just fine for me. Those mirrors are for sissies (IMO), and YES I know how big you are and you know what? :cheers:

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But when you're in reverse at least you get the rear view camera. I have backed down a hill with rocks on both sides and ice beneath me without those little convex mirrors or a spotter :D

I know I know they are old man mirrors. Do me a favor though: Try them sometime and you will be surprised.

Funny story:
My son bought a crap Subaru for his first car at 15 for like $1,000.00. It had those little convex mirrors on it and he said he was going to scrape them off cause it looked an old man drove it. I told him to drive it for awhile with them on and if he hated them to take them off later.

Fast forward three years: We traded that Subie in when he started college and helped him buy a 2010 Subie Impreza hatch for going back and forth to school that was newer and dependable. It did not have those little mirrors on them. Within a few days I was helping him wash it and noticed there were new convex mirrors installed. He told me he put them on the first night after we got it lol. Try them. Oh, [MENTION=65614]Antman[/MENTION], you need to reserve judgement on being scared lol.
 
I use the "old man" mirrors as well. I've put them on every truck I've owned, and I'll never own another vehicle without them! It makes everything when working in reverse or on the highway much easier and much safer. :llama:

Edit: I should also mention that I back into my garage next to a Honda Accord that always seems to creep closer and closer to "my side" of the garage. So, with my bumpout sliders, the old man mirrors make it exponentially easier to get as close as possible without side-swiping my garage frame with my bumpout sliders (ahem [MENTION=6163]phillyd2[/MENTION]).
 
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I've seen the Car and Driver article, and don't like the little mirrors. Having driven a 450GL for a few years with the system and similar blind spots as the 4Runner I can say nothing works as well. I don't care if you religiously check, like I do, or install mirrors, the system just plain works better. I will give you that the MB system will tug on the wheel to wake you up before it lets you hit something, but any detractors here need to go try out a blind spot assist system that works well first. As far as sensors go, the ones on my 4runner start to pick up objects (hedge at the end of my driveway) at 12 feet or so, plenty far enough to pick up a car riding on you quarter panel.
 
Poor OP. Everybody just makes fun of his question and then starts bantering back and forth. Sorry OP, I'm no help, but I do like the idea of blind spot monitoring systems despite what these guys say about old fashion mirrors. Good luck though.
 
I've searched this forum and google and can't find anything about this, figured some electronic genius here could help. I'm fairly competent with electronics but know that I couldn't be the first to think of this.

We already have a multi sensor reverse monitor system. Mine has three lights, one for right, left, and center. It seems to me that I could add two sensors on the sides that come on only when the vehicle is in drive instead of reverse. If these sensors sensed and object we could illuminate a light mounted in view of the appropriate side view mirror.

Does anyone have a wiring diagram, or any information on where the reverse sensor module is located?

Poor OP. Everybody just makes fun of his question and then starts bantering back and forth. Sorry OP, I'm no help, but I do like the idea of blind spot monitoring systems despite what these guys say about old fashion mirrors. Good luck though.

[MENTION=87499]Crawlerdog[/MENTION] in all seriousness there is a reason that I turned the subject away to silly mirrors when I saw the OP's post and I'm quite sure [MENTION=65614]Antman[/MENTION] and [MENTION=66300]Intruder[/MENTION] know too.

I'm not an electrical systems engineer or a safety engineer. I do recognize serious potential major league problems with the OP's premise of using our parking sensors as blind spot monitors though:
1. I'm "fairly competent with electronics." He only has a few posts so we don't know if he is being facetious or he is really a Sheldon Cooper of physics and electronics.
2. Using a simple parking sonar sensor designed for a few miles per hour and expecting it to be a proximity electromagnetic radar signal designed to work at 80 miles per hour. Those are very different sensors that have strengths and weaknesses depending on operation. Sort of like the difference between Statics and Dynamics in my world.

When I first read his post I thought of this example:
He wires up a few lights to his parking sensors. He tests it out driving down the subdivision for 20 minutes or so and determines it works pretty good. He then takes it out on a highway and it still seems it works OK. He brings it home, explains the mod to his wife and goes inside for a beer. His wife then takes the baby in the 4Runner out to a mall 20 minutes away on the interstate. While driving at 75 mph she notices the lights do just fine and is comfortable. She then goes to pass a truck and seeing no light, she goes into the left lane, clipping a car that was going to pass her and spinning through the median... well you get my drift.

I don't know if using a sonar based sensor at speed around lots of other moving objects is fine or not. I CAN say though that if this parking sensor, it's location on the vehicle and it's ability to determine if there is an object in the 4Runner's blind spot at speed was good enough for the OEM engineers to convert into a blind spot monitor by just adding a few lights then they would have did so already.

This is by far one of the worst ideas for a mod I have read in this forum since I have joined. It has the very real potential to cause death and destruction at the worst and at the least cause major property damage.
The problem is maybe the OP is a brilliant physicist and has completed the 1000's of hours of testing and research required to do this safely and just need some help with wiring. Probably not, but I really don't know.

I know that when an idea gets into someone's head they will do it no matter what. I should have made this post right after I read his original idea but I hoped by posting about mirrors and such he would get the point that his idea could go wrong on so many different levels and just forget about it.

So, [MENTION=98714]Nomad33fw[/MENTION] if you are reading this, unless you are AN EXPERT IN SENSOR DESIGN AS IT RELATES TO SPATIAL LOCATIONS, please just add floor mats, wheels or side steps. Or a bug shield or vent visors. Thanks for reading.
 
Here is a link to How Stuff Work on the blind spot systems.

HowStuffWorks "Blind Spot Monitoring Technologies"

Interesting Reading!

Passive Blind Spot Monitoring: Passive blind spot warning systems involve -- surprise! -- a mirror. Talk about low tech! Many car manufacturers will offer you the alternative to put a special convex mirror in the corner of your current external rearview mirror that can see into areas where normal rearview mirrors cannot. And if you don't have one of these on your current car, you can probably walk into your local auto parts store, buy one, and install it yourself (though be warned that experts advise against self installation because the precise positioning of these mirrors is crucial). Amazingly, tests have shown these special mirrors, which are the cheapest form of blind-spot monitoring system imaginable, are every bit as effective as sophisticated (and expensive) radar-based systems. And surveys show that consumers who have used both actually prefer the mirror to the radar -- if only because the mirror doesn't blink annoying warning lights at you or make beeping noises. So it's possible that the best state-of-the-art blind spot monitoring system may be one that's been state-of-the-art since the ancient past.

@1engineer I agree w/ your assessment. It is going to be near impossible for the average enthusiast to retrofit a blind spot monitoring system that can be reliably counted on to function correctly cobbled together with parts from Toyota's parts bin. One of the real problems as you alluded to is that you just don't know how effective the system is or isn't and you don't have the means to adequately test and guarantee reliability. Theoretically, a retrofit kit could be developed, but I would be surprised if there is anyone that would want to incur the liability necessary to bring such a kit to market.

David
 

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