Parkade Metal Sensor - BMW Luxury Touring Community
 
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post #1 of 14 Old Feb 21st, 2010, 2:26 pm Thread Starter
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Parkade Metal Sensor

I like to ride my GT to work during the summer, but am having problems because the GT doesn't have enough metal on it to activate the sensor to let me into the buildings underground parking lot. Since there is usually no parking attendant around, it makes getting in a big PITA. I was wondering if one of those magnets that you attach to the bottom of your bike to activite traffic lights would work and if so, would anyone have a supplier and model that they would recommend.

Thanks!
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post #2 of 14 Old Feb 21st, 2010, 2:33 pm
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Re: Parkade Metal Sensor

If the sensor is a loop of wire in the ground. It "might" work. It might not...

If the vehicle is sensed in some other way. Probably not.

You'll need to get the magnet as low as you can...It is just a big magnet.. So go find a big one someplace and try it...No need to spend a bunch of money on magnets..Got an old speaker ? Pop the magnet off the back of the frame with a chisel.

You could get a few from old hard disks, Then stack them together. Fasten them to your boot... Then wave your boot over the loop... That'd likely work for sure.

John

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post #3 of 14 Old Feb 22nd, 2010, 8:22 pm Thread Starter
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Re: Parkade Metal Sensor

Thanks John! I will try the magnet off an old speaker. I appreciate you showing me how to save a few bucks. Ron
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post #4 of 14 Old Feb 23rd, 2010, 12:51 am
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Re: Parkade Metal Sensor

Quote:
Originally Posted by ronk1200lt
Thanks John! I will try the magnet off an old speaker. I appreciate you showing me how to save a few bucks. Ron
I bet that the magnet doesn't help, but do let us know.

Traffic loops use a high-frequency oscillating current to induce currents in the metal of your vehicle. The traffic loop wires are connected to a sensor, which detects the effects of the induced currents on the traffic loop.

The magnet won't help, other than providing some additional conductive metal. A same-sized piece of non-magnetized (but conductive) metal would have the same effect.

How do I know? I will never forget the bet I made with my physics prof on this topic, and for the last three years I have worked on the traffic loops and sensors that operate the gates of our neighborhood association. We have the sensitivity set very high - motorcycles and most bicycles can trigger them, but I have demonstrated for disbelieving neighbors that neodymium magnets cannot.
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post #5 of 14 Old Feb 23rd, 2010, 9:51 am
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Re: Parkade Metal Sensor

Quote:
Originally Posted by ronk1200lt
I like to ride my GT to work during the summer, but am having problems because the GT doesn't have enough metal on it to activate the sensor to let me into the buildings underground parking lot. Since there is usually no parking attendant around, it makes getting in a big PITA. I was wondering if one of those magnets that you attach to the bottom of your bike to activite traffic lights would work and if so, would anyone have a supplier and model that they would recommend.

Thanks!
Hey neighbor, we'll have to meet for a ride sometime, when the roads are clear.

P.S. Born and raised in Edmonton, escaped to little ole Leduc 3.5 yrs ago

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post #6 of 14 Old Feb 23rd, 2010, 10:06 am
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Re: Parkade Metal Sensor

If it has a coil sensor in the pavement try moving slowly across it while sliding the kick stand on the pavement. That usually works.


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post #7 of 14 Old Feb 23rd, 2010, 12:32 pm Thread Starter
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Re: Parkade Metal Sensor

Quote:
Originally Posted by Rickmick
Hey neighbor, we'll have to meet for a ride sometime, when the roads are clear.

P.S. Born and raised in Edmonton, escaped to little ole Leduc 3.5 yrs ago
Hi! Rick the roads were clear enough on Saturday for me to get my bike out for a 1/2 hour ride. I live near St. Albert so we will have to get together for a ride.

Ron
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post #8 of 14 Old Feb 23rd, 2010, 12:34 pm Thread Starter
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Re: Parkade Metal Sensor

Quote:
Originally Posted by deanwoolsey
If it has a coil sensor in the pavement try moving slowly across it while sliding the kick stand on the pavement. That usually works.
I never thought of it, but lowering the kick stand will put metal closer to the ground. I will give that a try.
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post #9 of 14 Old Feb 23rd, 2010, 1:07 pm
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Re: Parkade Metal Sensor

Putting the side stand down in gear will kill the bike (I think) so neutral it first and coast it across.


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post #10 of 14 Old Feb 23rd, 2010, 3:36 pm
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Re: Parkade Metal Sensor

Quote:
Originally Posted by deanwoolsey
Putting the side stand down in gear will kill the bike (I think) so neutral it first and coast it across.
It won't kill it until you let the clutch out...

John
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post #11 of 14 Old Feb 24th, 2010, 10:32 pm
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Re: Parkade Metal Sensor

Do you have a center stand? Use it instead of the side stand, won't have to mess with finding neutral etc. Just roll up, clutch in, push the center stand down onto the loop and it may go for you. If it does, just ride in. I used this method on several of the lights around my house until I got tired of doing that and just called state highway to have them turn up the sensitivity. May want to check with owners of the garage and see if they can adjust the sensor loop, after all, you are a paying customer.
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post #12 of 14 Old Feb 24th, 2010, 11:59 pm
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Re: Parkade Metal Sensor

Quote:
Originally Posted by jzeiler
It won't kill it until you let the clutch out...
Huh? I ride my 2007 K1200GT into the garage, in first gear, stop with the clutch in (still in first gear), and kill the engine by lowering the side stand. Because it is in first gear, the bike is less likely to roll off the side stand if the bike is bumped by accident.
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post #13 of 14 Old Feb 25th, 2010, 7:28 am
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Re: Parkade Metal Sensor

WOW !!! Hold my beer and watch this! Careful lowering either stand while moving and possible leaning..

I hit a large piece of metal in the road last month and lost the springs holding up the kickstand. Kickstand dropped down, killed the engine and I slowly rolled over to the side of the road. I had been planning to turn right, off of the interstate. Left turn would have been ugly. It could have been a pain with a pivot point to one side and me having to go the other way because of traffic.

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post #14 of 14 Old Feb 25th, 2010, 10:24 am
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Re: Parkade Metal Sensor

I tried one of those magnets back a few years ago. IMHO save yourself time and money. The one I had didn't accomplish anything except to make my wallet lighter. Talk to the garage people. There should be an adjustment for sensitvity for the sensors for that system. I know the traffic light sensors can be tweaked as necessary to recognize a motorcycle.
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