Studio711.com – Ben Martens

Gadgets

AutoCom Super Pro Avi

I know I said I was going to wait a bit before buying the communications system for the bike, but I decided it was worth it and the numbers worked out in the budget. So yesterday an AutoCom Super Pro Avi arrived in the mail. I immediately dug into the bike to install it.

The installation wasn’t too difficult. Kawasaki provides accessory power leads from the rear of the bike. I soldered some bullet connectors onto the leads from the AutoCom and got it plugged in. The unit is mounted under the seat, but I really wanted to have my MP3 player in the glove box at the front of the tank. I took the time to dismantle the bike and get the wire routed cleanly up under the gas tank and inside the front fairings. I was a bit nervous when I started unbolting the gas tank but it all worked out just fine. The end of the audio lead now pokes out from inside the glove box. The rider headset lead comes out between the front of the seat and the tank, and the passenger headset lead comes out under the left hand grab bar in the rear.

The helmet install takes a bit to get right. The ear pads need to be placed directly over the ear and preferably behind the padding of the helmet. The microphones need to be touching the center of your lips. There is also a wind sensor that detects the ambient noise.

That wind sensor is really what makes this unit so nice. As your speed increases, it detects more noise and cranks up the volume. It’s also tied to the level of sound needed to activate the microphone. This means that you can talk at a normal voice at any speed and the mic will activate as you’d expect. When the mic is activated, the music quiets to 50% volume.

I probably could have opted for one of the cheaper models but I ended up with the top of the line model. It has a lot of expandability. For example, I can buy an adapter to connect to my phone via Bluetooth. I can also plug in an FRS radio for bike-to-bike communications.

All in all, I was very happy with the install and my test ride. I look forward to getting on the bike with Tyla and trying out the chat feature.

Ski Geek

Somehow, every activity I participate in is turned into a geek project. Skiing is no different. This season, I have been carrying around the Garmin GPS that I purchased earlier in the year. It keeps a signal inside my coat and dutifully tracks my position every few seconds.

I can load this into my National Geographic topographical map program and get an interesting view, but I wanted more. I want to know my top speed, how much time I spent in the lift lines, how fast the lift was moving, which lifts I rode the most, etc.

To that end, I’ve started writing a program to analyze the GPS data. The raw statistics are fairly simple and I was able to get a display churned out pretty quickly. Lately I’ve been stuck on trying to automatically figure out when I was on a lift. On the surface, it seems easy: you’re on a lift when you’re going up. That’s not always true. Runs have rises in them and lifts have dips in them. So then I tried to say that any time I’m heading in the same direction for X miles and Y vertical feet then I’m on a lift. Even that has problems. What happens when you get off a lift and keep skiing straight down the backside of the hill? What happens when you get a couple errant GPS points that aren’t in line with the lift? There is enough drift in the data to make it very complicated. If I can’t get the automatic solution figure out, I’m going to have the user tell me where the lifts are the first time and then I’ll save that data. I want to move on to getting either a 2D or 3D map working next. After that I’ll work out a good way to display all the statistics about the day and each individual run.

If you’re interested in seeing the code and/or helping out, it’s all available on codeplex.

The picture below shows the track from my last ski day at Crystal Mt in the National Geographic software. My software will end up looking something like this but with more data and information on the screen.

Photo Frame Update

On Sunday I took the shelves down from above the fireplace. I removed the fish tank about 6 weeks ago and the large gap has remained unfilled. I decided to rotate the shelves 180 degrees to move the hole up to the top left corner. It's not so bad up there because it's higher and you can't see through the shelves to the mess of wires behind. I'll fill it with big books or a plant or something like that.

The trick to this rotation was that I had to remove and rotate the LCD. That worked fine but I couldn't get the laptop to display on the LCD. I figured a reboot would solve it. Wrong. The laptop shut off and then refused to turn back on. I think the hard drive is dead but I'm not going to spend time fixing a free junk laptop. I quickly found a replacement on expo.live.com and picked it up on Tuesday. The new laptop got installed last night and everything is back to normal.

The laptop is a P2 400 with 128MB of RAM, a 12GB hard drive and a DVD drive. My first computer in 1998 was a P2 350 with 128MB of RAM, a 10GB hard drive and a CD drive and it cost me $2400. This laptop cost me $40.