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Thread ID: 71682 2006-08-13 09:17:00 Programming help Lowie (10980) Press F1
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478195 2006-08-13 09:17:00 Hi all, Just came across an old data logger project I was playing with a while ago. It records G forces and lap times and can be down loaded with Hyperterminal. Anyone out there able to help with some programming to display the data or point me to someone that can??

Thanks 		Lowie (10980)
478196 2006-08-13 09:40:00 Can you give some more details? It is more likely someone would be able to help if you give more details.
What does the data logger project do?
What programming tool do you use? .net, vb6, power builder, delphi, java, c/c++ or what?
How do you download data in HyperTerminal? via COM port? where is the data downloaded from, a device?
How do you want the data displayed?




Hi all, Just came across an old data logger project I was playing with a while ago. It records G forces and lap times and can be down loaded with Hyperterminal. Anyone out there able to help with some programming to display the data or point me to someone that can??

Thanks 		developer (4447)
478197 2006-08-13 09:41:00 Give more detail please. Lets have a look at the data. mejobloggs (264)
478198 2006-08-13 09:59:00 Thanks guys, The data logger records lap times and G force loads, the data is downloaded via com port as a txt:
lap
1,10.05
2,6.08 (seconds)
3,7.08
data
1,1954,2028,111,0
2,1920,2020,96,0 (1920, 2020 x & y G force)
3,1972,2011,89,0
4,1974,2012,80,0
5,1974,2007,76,0
6,1977,2006,73,0
7,1985,1998,71,0
8,1991,1995,70,0
9,1979,1992,69,0
10,1991,1983,69,0

Would like to display data in graph form. 		Lowie (10980)
478199 2006-08-13 10:06:00 Would be nice to have a simple program to download and process the data in one hit. There is a simple bit of maths to do to end up with a true G force reading. I need to put the data in excel to work out this maths but can't remember how to get it in individual colums, tabs limited or something... Lowie (10980)
478200 2006-08-13 10:13:00 To transfer data via com ports, you can use mscomm control in vb6 and .net; in java you can use javax.comm package (not included in standard jdk, need to download from sun.com).

I am not sure what you mean by display the data in graphic form (as web? as picture?) and what you mean by process the data (calculate?). If you simply like the data to be put into excel after downloaded, the easiest way I can think of is save your data in csv format and use excel to open it. 		developer (4447)
478201 2006-08-13 10:24:00 The data logger was built for measuring lap times and side loading for kart racing. The data is raw, so we need to establish a base value for one "G" then add / subtract to give a true plus / minus G force reading. Get the picture..... Lowie (10980)
478202 2006-08-14 09:49:00 Ideas anyone???? Lowie (10980)
478203 2006-08-14 10:13:00 Your explanation is not very clear.
What are the first 3 lines.

1,10.05
2,6.08 (seconds)
3,7.08

and is "(seconds)" in there or did you add it?

And for the data:

3,1972,2011,89,0
4,1974,2012,80,0

I guess the first column is a counter and the 2nd and 3rd are accelerations, but what are the units? And what is the 4th column and is the 5th column always zero?

It looks like an easy task for NumPy (an offshoot of Python) which I'm teaching myself at present, but before committing I need to establish that you know what you want. 		TideMan (4279)
478204 2006-08-14 10:35:00 Ok the first set of data is lap time, lap no. then time in seconds. Yes I added the word second. The second data set is the acceleration data, sample no. then the data from the accleromiter(?). The data is raw, we need to establish a 1 G load we do this by turning the logger on its side (90 deg from horizontal) we do this on both the X and Y axis. This 1 G value is used to work the raw data to produce a true acceleration rate. Dont worry about the other two colums. All I want is a simple program to download and display the data in a meaningful manner. Lowie (10980)
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