Revving engine at traffic light to engage red light sensors? - Page 2 - ZX6R Forum
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post #16 of 26 Old 03-13-2017, 03:30 PM Thread Starter
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Originally Posted by PainfullySlo View Post
I am being serious. Our bikes specifically come with shielded coils, resistor plugs, and all sorts of other nifty gadgets to prevent EM emissions. I am no rocket scientist but I did stay at a holiday inn once so I am telling you that spooling up the engine will not create a significant increase in EM emissions.
That's a good point! With the shielding that would minimize such.

I really don't know enough about EM. But this makes sense.

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post #17 of 26 Old 03-13-2017, 05:41 PM
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That's a good point! With the shielding that would minimize such.

I really don't know enough about EM. But this makes sense.

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I measure EM from all sorts of equipment, all the time. That's what I do, as an EMC engineer.

I've measured quite a bit of diesel powered equipment, along with radios, radars, ew equipment, hospital stuff, guns, bombs, missiles, robots......never the same thing twice. 250+ different projects in the past five years.

It's the setting of the sensitivity that controls when the light is triggered..... whenever you find one that doesn't react to a bike, do everyone a favor and complain about it to the road maintenance department responsible.

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post #18 of 26 Old 03-13-2017, 05:49 PM
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Originally Posted by RJ2112 View Post
I measure EM from all sorts of equipment, all the time. That's what I do, as an EMC engineer.

I've measured quite a bit of diesel powered equipment, along with radios, radars, ew equipment, hospital stuff, guns, bombs, missiles, robots......never the same thing twice. 250+ different projects in the past five years.

It's the setting of the sensitivity that controls when the light is triggered..... whenever you find one that doesn't react to a bike, do everyone a favor and complain about it to the road maintenance department responsible.
We are talking two things here correct.

One is what it takes to trigger the wire loops in the asphalt.
Which is the sensor being sensitive enough to detect metal that is over that loop.

The second is EMD or EMP electromagnet Discharge or pulses.
That is created by alternating current.

Not an issue is the infrared sensors Emergency vehicles use to trigger the lights.

I worked on Tempest shielded equipment in the Air Force many moons ago.
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post #19 of 26 Old 03-13-2017, 06:52 PM
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We are talking two things here correct.

One is what it takes to trigger the wire loops in the asphalt.
Which is the sensor being sensitive enough to detect metal that is over that loop.

The second is EMD or EMP electromagnet Discharge or pulses.
That is created by alternating current.

Not an issue is the infrared sensors Emergency vehicles use to trigger the lights.

I worked on Tempest shielded equipment in the Air Force many moons ago.
The sensor is immune to any noise a bike generates. It will not change states due to any EM from the bike.

The iron in the bike will alter the field the loop in the road creates..... just like a coin, or a can may do with a metal detector. That's why dropping the steel side stand onto the pavement sometimes works.... more iron closer to the detector gets a stronger reaction.

I've evaluated tempest systems, but not for tempest certification. I'm familiar with red and black side components, and have troubleshot issues in tempest facilities.

"Basic stuff fellas. Use your head for something other than to break your next fall."

"There's this adage that we have 2 ears and one mouth so we should listen twice as much as we talk. Unfortunately with the Internet people have taken this old adage and turned it around. They have two eyes and 10 fingers so they think they need to post 5 times as much as they read. And since they have 10 fingers and one brain, they only have to think 10% of the time! "
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post #20 of 26 Old 03-13-2017, 07:22 PM
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Originally Posted by RJ2112 View Post
The sensor is immune to any noise a bike generates. It will not change states due to any EM from the bike.
That would be the second, from my comment.
Quote:
The iron in the bike will alter the field the loop in the road creates..... just like a coin, or a can may do with a metal detector. That's why dropping the steel side stand onto the pavement sometimes works.... more iron closer to the detector gets a stronger reaction.
This is the first from my comment.

Quote:
I've evaluated tempest systems, but not for tempest certification. I'm familiar with red and black side components, and have troubleshot issues in tempest facilities.
I find it funny, all the money for tempest to have it hacked at the host.
So unless the entire network, client to host is hardned seems like a waste. LOL.
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post #21 of 26 Old 03-13-2017, 09:06 PM
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I just run the lights. Illinois and Missouri passed laws that if the light doesn't change within a "reasonable" amount of time then motorcycles are allowed to run the light cautiously. For me a "reasonable" amount of time is occasionally down around 2 seconds.
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post #22 of 26 Old 03-13-2017, 09:37 PM
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I just run the lights. Illinois and Missouri passed laws that if the light doesn't change within a "reasonable" amount of time then motorcycles are allowed to run the light cautiously. For me a "reasonable" amount of time is occasionally down around 2 seconds.
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post #23 of 26 Old 03-13-2017, 10:36 PM
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Originally Posted by trackdayhero View Post
I just run the lights. Illinois and Missouri passed laws that if the light doesn't change within a "reasonable" amount of time then motorcycles are allowed to run the light cautiously. For me a "reasonable" amount of time is occasionally down around 2 seconds.
Id like to see that argument hold up in court
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post #24 of 26 Old 03-13-2017, 11:53 PM
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post #25 of 26 Old 03-14-2017, 05:57 AM
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Originally Posted by trackdayhero View Post
I just run the lights. Illinois and Missouri passed laws that if the light doesn't change within a "reasonable" amount of time then motorcycles are allowed to run the light cautiously. For me a "reasonable" amount of time is occasionally down around 2 seconds.
If I remember correctly in Texas its a full revolution of the lights. So if you pull up on red and wait, then cross traffic turns red but you don't get a green then you can proceed. But I'm kinda the same lol if i pull up and there is no cross traffic i just kinda zip thru. The traffic light detectors here suck anyway
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post #26 of 26 Old 03-14-2017, 06:54 AM
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I ran one in my damn truck a few weeks ago LOL. The sensor never tripped and I was there for a legit 5 minutes, at 10pm, with no traffic around. If I hadn't been eating at the time it would have happened sooner lol
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