Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision Last revision Both sides next revision | ||
|
projects:carmon [2015/03/18 14:29] admin |
projects:carmon [2019/09/06 07:56] admin [Data processor] |
||
|---|---|---|---|
| Line 6: | Line 6: | ||
| * analyzing data on-the-fly | * analyzing data on-the-fly | ||
| * detecting potential problems on-the-fly | * detecting potential problems on-the-fly | ||
| - | * informing driver about problems found | + | * informing car driver about problems found |
| * storing collected data in central database | * storing collected data in central database | ||
| * off-line data analysis | * off-line data analysis | ||
| ===== Architecture ===== | ===== Architecture ===== | ||
| ==== On-board monitoring system ==== | ==== On-board monitoring system ==== | ||
| - | ==== Central expert system ==== | + | ==== Central database and expert system ==== |
| + | ==== Data processor ==== | ||
| + | == Display distance between DPF rejuvenations == | ||
| + | <code> | ||
| + | $ grep DPFDIST * | cut -d ',' -f 4 | | ||
| + | gawk '{aa = strtonum("0x" $0); if ((aa < 200) && (aa > 5)) print aa; if ((aa > 180) && (aa < 300)) {print aa / 2; print aa / 2}}' > /tmp/dpfdist | ||
| + | $ echo "set terminal x11; set grid; plot '/tmp/dpfdist' with lines" | gnuplot -p | ||
| + | </code> | ||
| + | == Display Injector corrections == | ||
| + | <code> | ||
| + | $ grep ECU01AD * | cut -d ',' -f 3 | | ||
| + | gawk 'BEGIN{prev=""} {curr=substr($0, 35, 8); if (curr != prev) \ | ||
| + | {i1=strtonum("0x" substr(curr, 1, 2)); i2=strtonum("0x" substr(curr, 3, 2)); \ | ||
| + | i3=strtonum("0x" substr(curr, 5, 2)); i4=strtonum("0x" substr(curr, 7, 2)); \ | ||
| + | print i1-64, i2-64, i3-64, i4-64, i1+i2+i3+i4-256; prev=curr} }' > /tmp/injraw | ||
| + | $ cut -d ' ' -f 1 /tmp/injraw > /tmp/inj1raw | ||
| + | $ cut -d ' ' -f 2 /tmp/injraw > /tmp/inj2raw | ||
| + | $ cut -d ' ' -f 3 /tmp/injraw > /tmp/inj3raw | ||
| + | $ cut -d ' ' -f 4 /tmp/injraw > /tmp/inj4raw | ||
| + | $ grep -v "0 0 0 0 0" /tmp/injraw | cut -d ' ' -f 5 > /tmp/injsumraw | ||
| + | $ echo "set terminal x11; set grid; plot '/tmp/inj1raw' with lines" | gnuplot -p | ||
| + | $ echo "set terminal x11; set grid; plot '/tmp/inj2raw' with lines" | gnuplot -p | ||
| + | $ echo "set terminal x11; set grid; plot '/tmp/inj3raw' with lines" | gnuplot -p | ||
| + | $ echo "set terminal x11; set grid; plot '/tmp/inj4raw' with lines" | gnuplot -p | ||
| + | $ echo "set terminal x11; set grid; plot '/tmp/injsumraw' with lines" | gnuplot -p | ||
| + | </code> | ||
| + | == Display DPF differential pressure == | ||
| + | <code> | ||
| + | $ grep ECU01EF * | cut -d ',' -f 3 | gawk '{aa = strtonum("0x" $0); print aa / 256.0 - 5.0}' > /tmp/dpfdp | ||
| + | $ echo "set terminal x11; set grid; plot '/tmp/dpfdp' with lines" | gnuplot -p | ||
| + | </code> | ||
| + | == Detect data loss == | ||
| + | <code> | ||
| + | $ find ./ | sort | while read line ; do echo $line; grep ECU $line | cut -d ',' -f 1 | | ||
| + | gawk 'BEGIN{pt = -1} {ct = substr($0, 13); if (pt != -1) \ | ||
| + | {difft = ct - pt; if (difft < 0) difft += 60000; if ((difft > 30) && (difft < 500)) \ | ||
| + | print pt,ct,difft,pts,$0,$0-pts}; pts = $0; pt = ct}' ; done > /tmp/result | ||
| + | </code> | ||
