ardupilot/Tools/LogAnalyzer/tests/TestBrownout.py

40 lines
1.4 KiB
Python

from LogAnalyzer import Test,TestResult
import DataflashLog
import collections
class TestBrownout(Test):
'''test for a log that has been truncated in flight'''
def __init__(self):
Test.__init__(self)
self.name = "Brownout"
def run(self, logdata, verbose):
self.result = TestResult()
self.result.status = TestResult.StatusType.GOOD
if "EV" in logdata.channels:
# step through the arm/disarm events in order, to see if they're symmetrical
# note: it seems landing detection isn't robust enough to rely upon here, so we'll only consider arm+disarm, not takeoff+land
isArmed = False
for line,ev in logdata.channels["EV"]["Id"].listData:
if ev == 10:
isArmed = True
elif ev == 11:
isArmed = False
if "CTUN" not in logdata.channels:
self.result.status = TestResult.StatusType.UNKNOWN
self.result.statusMessage = "No CTUN log data"
return
# check for relative altitude at end
if "CTUN" in logdata.channels and "BarAlt" in logdata.channels["CTUN"]:
(finalAlt,finalAltLine) = logdata.channels["CTUN"]["BarAlt"].getNearestValue(logdata.lineCount, lookForwards=False)
finalAltMax = 3.0 # max alt offset that we'll still consider to be on the ground
if isArmed and finalAlt > finalAltMax:
self.result.status = TestResult.StatusType.FAIL
self.result.statusMessage = "Truncated Log? Ends while armed at altitude %.2fm" % finalAlt