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Another exciting day!
This morning I qualified 2nd. Just before the race, the driver on pole decided to start from the back and work his way up to the front, so that moved me to P1. I got a great start and was able to pull a short gap on the field and led about half of the race. I faded towards the end of the race and finished 4th. Overall, it was good weekend having reached my near-term goal of keeping up with the group at the front of the pack. Now, I just need to work on staying out front a little bit longer. :) |
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This SD card cost me 3 hours of troubleshooting Sunday! (damn those things are small now!)
After not getting any of the three past races on video, I wanted to finally get to the source of the problem. Previously every time that I thought that I had it fixed, it happened again (and again). I spoke to Brad Roberts and he said to update everything to the latest firmware and then if its still a problem, its the SD card. Now, I have great respect for Brad but thought it was weird that an SD card that had worked perfectly fine for two years all of a sudden starts to fail? I had never heard of this - SD cards don't wear out (at least not in this type of consumer application). But, what the heck, I wanted to get this working once and for all. I started by updating the camera firmware and the configuration app to the latest versions. Easy, breezy. Next, I configured a test setup that worked the same way that the camera is controlled in the car (the camera is supposed to turn on automatically when 5vdc power is applied through the mini-USB connector and turn off when power is removed. The Traqmate data system supplies the power automatically so the video and data is synchronized). The camera worked fine for the first two rounds of tests (the camera automatically creates an individual 1.1GB segmented video file roughly every 10 mins. I also started and stopped the camera a few times to re-create track sessions). Close to the end of the second test, it simply stopped recording and lost all of the configuration data so all subsequent attempts to get the camera to record were fruitless. This is exactly what kept happening at the track. I had to re-format the SD card and re-set all of the config settings to get the camera to come back to life. The good news is that I was able to re-create the problem and it looks like its either the data card or the camera itself. Then I swapped the old SD card for a new Patriot 32GB Class 10 card and started re-running the tests. Thus far, I've been able to record almost 50GB of video without any problems. Testing will continue through the week until I feel confident that it will work. Then I'll do some in-car testing this weekend just to make sure. I think that I'll smash the old SD card with a sledge hammer just to make me feel better. :) |
Flash memory actually does have a wear out time. They are designed to compensate for memory that does wear out by remapping locations and other techniques.
How does flash memory work? - Explain that Stuff In addition, all semiconductor devices have long term reliability degradation. In the simplest terms, the transistors age and slow down. This is statistically compensated for with increased voltage, but sometimes the increase is insufficient for the aging. Sometimes the wires connecting transistors break down due to electro-migration. These are all factors that go into the design and working life estimations of electronics Mike Quote:
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Still strange that the old SD card is problematic since it only got used about 100 times a year. But with that being said, the new SD card is working fine thus far with almost 100GB written/read without any problems. Lesson learned. |
I tested the camera in the car this morning and no joy. :(
Started working my way thru the system and ultimately found that the TraqDash unit that controls the camera operation was only outputting 1vdc instead of 5vdc. No surprise that the camera wasn't working! I went to the TraqMate website and found that they announced in July that they were halting production and unfortunately, they appear to be in the process of closing down. The website said they will still provide repairs and support so I sent them a message explaining the problem. I'd rather not change the data system, so just in case TraqMate can't repair the unit I bought a 12vdc to 5vdc convertor module. I can tie the input to the 12vdc power going to the TraqMate and then wire the 5vdc output direct to the camera (bypassing the TraqDash). This should fix the problem one way or another. :) |
Tom, I have a traqmate I took out of my car 2 years ago
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There was a recent Spec Boxster racing incident where the 986 engine cover came loose during an incident and allowed fire in the engine compartment to enter the passenger compartment.
Thus, Spec Boxster race cars are recommended to use the 987 metal engine cover that attaches with screwed fasteners to replace the 986 composite engine cover that uses the quick release clips to help prevent the engine cover from becoming displaced in an incident. The screw is a Torx T30 head. Here is the OEM parts list:
http://i1114.photobucket.com/albums/...psyolychgw.jpg http://i1114.photobucket.com/albums/...ps0psgazuu.jpg http://i1114.photobucket.com/albums/...psvxxa7qbl.jpg |
Been working on the data and camera system the past few days...
Unfortunately, TraqMate hasn't been a lot of help. All I get from them is that I need to configure the system properly. Well, I've done that about 15 times and still get the same result - no video! So, today I installed a 12vdc to 5vdc convertor module. Instead of using switched power, I connected the input to 12vdc constant power and ran it though a dash switch. Then I wired the 5vdc output direct to the cameras (bypassing the TraqDash). At the same time, I split the output three ways so I can run three cameras simultaneously (one looking forward, one looking rearward, and one looking at me). All three will be controlled (on/off) by a simple dash switch. This should guarantee video in the future! |
Camera install pic's. Cam1 looks forward, Cam2 looks rearward, Cam3 is pointed at the driver.
Bench tested everything yesterday and tested everything in the car today. Lots of video coming at the next race! Bench testing... http://i1114.photobucket.com/albums/...psi6mkylka.jpg Front and rear cams... http://i1114.photobucket.com/albums/...psagbpif1p.jpg Driver cam... (final mount not installed in photo) http://i1114.photobucket.com/albums/...psl8ls9skp.jpg |
The details for the 987 metal engine cover installation can be found here: http://986forum.com/forums/521116-post21.html
http://i1114.photobucket.com/albums/...pscgvp6umq.jpg |
Do you ever rest?
Happy New Year |
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See you soon. |
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More Stone movies is a good thing!
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It looks as if one might be able to mount the speaker box if it is trimmed at the rear edge for the hump. Can't say for sure. |
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