WildBoarMouse
30th January 2006, 21:10
A couple of us are looking to work on a bit of a project in our spare time and would really</I> appreciate any (constructive) feedback you might please be able to offer.
We're also looking for someone with experience </I>in the field of windows application & graphics programming. So, if you're interested in a bit of an after hours hobby/project please read through here and I'll put a few more details at the bottom of the page.
What we're looking to do is put together a data logger aimed at racers (amateur to pro) and pretty much anyone generally interested in analyzing/monitoring all the stats of their bike.
Initially we'd look at doing this in a couple of stages. The first being an all-out data recorder (with maybe a very simple text only LCD display - possibly removable), the second stage would include additional bike sensors, maybe a graphics LCD, and richer featured PC software.
The data we're looking to record in the first prototype consists of...
- Time
- GPS (location + velocity)
- Speed (front + back wheels)
- Throttle position - percentage
- Brakes (front + back) - on/off
- Engine RPM
- G-force (three axis - left/right, up/down, forward/backward) - measured in milli-Gs
- Induction temperature
We'd also like to include... but may cut out for the first prototype
- Lap timer (1/100th second resolution) - requires a separate trackside infrared transmitter
- Suspension travel - a little tricky
The second stage would include sensors such as:
- Exhaust gas temperature
- Exhaust oxygen levels (Lamda sensor)
and anything else that may be useful...
All of these would be recorded to an SD/MMC flash memory card (commonly found in digital cameras). Our initial estimates put the logging rate at just under 5Mb per hour, recording data at up to 50 times per second. Things like GPS location would be recorded at a lower rate due to limitations of the consumer priced GPS modules. A 32Mb card can be bought for around $15. So, that's around six hours of continuous data logging for $15. Not bad... If you want to store more data, use a larger card.
If you can think of any additional sensors that would be worth placing on a bike then please let us know.
e.g.
Brake lever position sensor? would there be any point?
Using combinations of the sensors above it is then possible to work out things such as:
Front wheel off the ground
Front wheel loss of traction (braking)
Rear wheel loss of traction (braking)
Rear wheel loss of traction (acceleration)
Current gear selection
Fuel consumption/averages (fairly accurate when using throttle + RPM to estimate)
Dyno readings (approx HP, approx torque etc...)
0 to 100 km/h and all those similar measurements
Lap timers (list of lap times, split times + max speeds etc)
plus a bunch of other things...
Using PC software this could then be viewed allowing you to see where all these things happened on the track... into a corner on lap 5 etc...
One limitation of consumer grade GPS is a resolution of +/- 10m. This means that GPS location can't be used to accurately</I> track your race line. It will, however, give a good indication of where on the track the recorded data matches.
Questions:
Does anyone have a lap timer IR trackside transmitter that we might please be able to have a look at (Pukekohe or Waitakere areas)? We have ideas on how we would like to do this but would also like to have a look at how other manufacturers have implemented this. We are primarily interested in lap timers that use infrared transmitters stationed on the side of the track.
How much do you think something like this would be worth if it was a good</I> product.
Are there any other products out there that can already do all of this? How much are they (if you know)? If you've used another system before, in what areas did you think it could have been improved?
As for the software engineer. Please send me an email or PM if you're interested. We're looking for someone with a few years of experience at least. I can bash out simple apps easy enough but not something I would consider selling as a professional looking application. <!--StartFragment -->We'd really like someone that was into the bike scene and could see themselves using this product on their own bike. :yes: If you're familiar with windowed graphics programs this would be ideal
Thanks everyone!
You can contact me on:
(021) 665444 or
darcyw%satlan*co*nz
We're also looking for someone with experience </I>in the field of windows application & graphics programming. So, if you're interested in a bit of an after hours hobby/project please read through here and I'll put a few more details at the bottom of the page.
What we're looking to do is put together a data logger aimed at racers (amateur to pro) and pretty much anyone generally interested in analyzing/monitoring all the stats of their bike.
Initially we'd look at doing this in a couple of stages. The first being an all-out data recorder (with maybe a very simple text only LCD display - possibly removable), the second stage would include additional bike sensors, maybe a graphics LCD, and richer featured PC software.
The data we're looking to record in the first prototype consists of...
- Time
- GPS (location + velocity)
- Speed (front + back wheels)
- Throttle position - percentage
- Brakes (front + back) - on/off
- Engine RPM
- G-force (three axis - left/right, up/down, forward/backward) - measured in milli-Gs
- Induction temperature
We'd also like to include... but may cut out for the first prototype
- Lap timer (1/100th second resolution) - requires a separate trackside infrared transmitter
- Suspension travel - a little tricky
The second stage would include sensors such as:
- Exhaust gas temperature
- Exhaust oxygen levels (Lamda sensor)
and anything else that may be useful...
All of these would be recorded to an SD/MMC flash memory card (commonly found in digital cameras). Our initial estimates put the logging rate at just under 5Mb per hour, recording data at up to 50 times per second. Things like GPS location would be recorded at a lower rate due to limitations of the consumer priced GPS modules. A 32Mb card can be bought for around $15. So, that's around six hours of continuous data logging for $15. Not bad... If you want to store more data, use a larger card.
If you can think of any additional sensors that would be worth placing on a bike then please let us know.
e.g.
Brake lever position sensor? would there be any point?
Using combinations of the sensors above it is then possible to work out things such as:
Front wheel off the ground
Front wheel loss of traction (braking)
Rear wheel loss of traction (braking)
Rear wheel loss of traction (acceleration)
Current gear selection
Fuel consumption/averages (fairly accurate when using throttle + RPM to estimate)
Dyno readings (approx HP, approx torque etc...)
0 to 100 km/h and all those similar measurements
Lap timers (list of lap times, split times + max speeds etc)
plus a bunch of other things...
Using PC software this could then be viewed allowing you to see where all these things happened on the track... into a corner on lap 5 etc...
One limitation of consumer grade GPS is a resolution of +/- 10m. This means that GPS location can't be used to accurately</I> track your race line. It will, however, give a good indication of where on the track the recorded data matches.
Questions:
Does anyone have a lap timer IR trackside transmitter that we might please be able to have a look at (Pukekohe or Waitakere areas)? We have ideas on how we would like to do this but would also like to have a look at how other manufacturers have implemented this. We are primarily interested in lap timers that use infrared transmitters stationed on the side of the track.
How much do you think something like this would be worth if it was a good</I> product.
Are there any other products out there that can already do all of this? How much are they (if you know)? If you've used another system before, in what areas did you think it could have been improved?
As for the software engineer. Please send me an email or PM if you're interested. We're looking for someone with a few years of experience at least. I can bash out simple apps easy enough but not something I would consider selling as a professional looking application. <!--StartFragment -->We'd really like someone that was into the bike scene and could see themselves using this product on their own bike. :yes: If you're familiar with windowed graphics programs this would be ideal
Thanks everyone!
You can contact me on:
(021) 665444 or
darcyw%satlan*co*nz