source: src/mlx/checks.py@ 445:d846b0172882

Last change on this file since 445:d846b0172882 was 443:acbe605bb814, checked in by István Váradi <ivaradi@…>, 12 years ago

Added support for the BAe 146-200 aircraft type (re #182)
File size: 63.0 KB
Line 
1
2import fs
3import const
4import util
5from acars import ACARS
6from sound import startSound
7
8import time
9
10#---------------------------------------------------------------------------------------
11
12## @package mlx.checks
13#
14# The classes that check the state of the aircraft.
15#
16# During the flight the program periodically queries various data from the
17# simulator. This data is returned in instances of the \ref
18# mlx.fs.AircraftState class and passed to the various "checkers",
19# i.e. instances of subclasses of the \ref StateChecker class. These checkers
20# perform various checks to see if the aircraft's parameters are within the
21# expected limits, or some of them just logs something.
22#
23# There are a few special ones, such as \ref StageChecker which computes the
24# transitions from one stage of the flight to the next one. Or \ref ACARSSender
25# which sends the ACARS periodically
26
27#---------------------------------------------------------------------------------------
28
29class StateChecker(object):
30 """Base class for classes the instances of which check the aircraft's state
31 from some aspect.
32
33 As a result of the check they may log something, or notify of some fault, etc."""
34 def check(self, flight, aircraft, logger, oldState, state):
35 """Perform the check and do whatever is needed.
36
37 This default implementation raises a NotImplementedError."""
38 raise NotImplementedError()
39
40#---------------------------------------------------------------------------------------
41
42class StageChecker(StateChecker):
43 """Check the flight stage transitions."""
44 def __init__(self):
45 """Construct the stage checker."""
46 self._flareStarted = False
47
48 def check(self, flight, aircraft, logger, oldState, state):
49 """Check the stage of the aircraft."""
50 stage = flight.stage
51 if stage==None:
52 aircraft.setStage(state, const.STAGE_BOARDING)
53 elif stage==const.STAGE_BOARDING:
54 if not state.parking or \
55 (not state.trickMode and state.groundSpeed>5.0):
56 aircraft.setStage(state, const.STAGE_PUSHANDTAXI)
57 elif stage==const.STAGE_PUSHANDTAXI or stage==const.STAGE_RTO:
58 if state.strobeLightsOn:
59 aircraft.setStage(state, const.STAGE_TAKEOFF)
60 elif stage==const.STAGE_TAKEOFF:
61 if not state.gearsDown or \
62 (state.radioAltitude>3000.0 and state.vs>0):
63 aircraft.setStage(state, const.STAGE_CLIMB)
64 elif not state.landingLightsOn and \
65 not state.strobeLightsOn and \
66 state.onTheGround and \
67 state.groundSpeed<50.0:
68 aircraft.setStage(state, const.STAGE_RTO)
69 elif stage==const.STAGE_CLIMB:
70 if (state.altitude+2000) > flight.cruiseAltitude:
71 aircraft.setStage(state, const.STAGE_CRUISE)
72 elif state.radioAltitude<2000.0 and \
73 state.vs < 0.0 and state.gearsDown:
74 aircraft.setStage(state, const.STAGE_LANDING)
75 elif stage==const.STAGE_CRUISE:
76 if (state.altitude+2000) < flight.cruiseAltitude:
77 aircraft.setStage(state, const.STAGE_DESCENT)
78 elif stage==const.STAGE_DESCENT or stage==const.STAGE_GOAROUND:
79 if state.gearsDown and state.radioAltitude<2000.0:
80 aircraft.setStage(state, const.STAGE_LANDING)
81 elif (state.altitude+2000) > flight.cruiseAltitude:
82 aircraft.setStage(state, const.STAGE_CRUISE)
83 elif stage==const.STAGE_LANDING:
84 if state.onTheGround and state.groundSpeed<25.0:
85 aircraft.setStage(state, const.STAGE_TAXIAFTERLAND)
86 elif not state.gearsDown:
87 aircraft.setStage(state, const.STAGE_GOAROUND)
88 elif state.radioAltitude>200 and self._flareStarted:
89 aircraft.cancelFlare()
90 self._flareStarted = False
91 elif state.radioAltitude<150 and not state.onTheGround and \
92 not self._flareStarted:
93 self._flareStarted = True
94 aircraft.prepareFlare()
95 elif stage==const.STAGE_TAXIAFTERLAND:
96 if state.parking and aircraft.checkFlightEnd(state):
97 aircraft.setStage(state, const.STAGE_END)
98
99#---------------------------------------------------------------------------------------
100
101class ACARSSender(StateChecker):
102 """Sender of online ACARS.
103
104 It sends the ACARS every 3 minutes to the MAVA website."""
105
106 ## The interval at which the ACARS are sent
107 INTERVAL = 3*60.0
108
109 def __init__(self, gui):
110 """Construct the ACARS sender."""
111 self._gui = gui
112 self._lastSent = None
113 self._sending = False
114
115 def check(self, flight, aircraft, logger, oldState, state):
116 """If the time has come to send the ACARS, send it."""
117 if self._sending:
118 return
119
120 now = time.time()
121
122 if self._lastSent is not None and \
123 (self._lastSent + ACARSSender.INTERVAL)>now:
124 return
125
126 self._sending = True
127 acars = ACARS(self._gui, state)
128 self._gui.webHandler.sendACARS(self._acarsCallback, acars)
129
130 def _acarsCallback(self, returned, result):
131 """Callback for ACARS sending."""
132 if returned:
133 print "Sent online ACARS"
134 self._lastSent = time.time() if self._lastSent is None \
135 else self._lastSent + ACARSSender.INTERVAL
136 else:
137 print "Failed to send the ACARS"
138 self._sending = False
139
140#---------------------------------------------------------------------------------------
141
142class TakeOffLogger(StateChecker):
143 """Logger for the cruise speed."""
144 def __init__(self):
145 """Construct the logger."""
146 self._onTheGround = True
147
148 def check(self, flight, aircraft, logger, oldState, state):
149 """Log the cruise speed if necessary."""
150 if flight.stage==const.STAGE_TAKEOFF and \
151 self._onTheGround and not state.onTheGround:
152 logger.message(state.timestamp,
153 "Takeoff speed: %.0f %s" % \
154 (flight.speedFromKnots(state.ias),
155 flight.getEnglishSpeedUnit()))
156 logger.message(state.timestamp,
157 "Takeoff heading: %03.0f degrees" % (state.heading,))
158 logger.message(state.timestamp,
159 "Takeoff pitch: %.1f degrees" % (state.pitch,))
160 logger.message(state.timestamp,
161 "Takeoff flaps: %.0f" % (state.flapsSet))
162 logger.message(state.timestamp,
163 "CG/Trim: %.1f%%/%.2f" % \
164 (state.cog*100.0, state.elevatorTrim))
165 self._onTheGround = False
166
167#---------------------------------------------------------------------------------------
168
169class CruiseSpeedLogger(StateChecker):
170 """Logger for the cruise speed."""
171 def __init__(self):
172 """Construct the logger."""
173 self._lastTime = None
174
175 def check(self, flight, aircraft, logger, oldState, state):
176 """Log the cruise speed if necessary."""
177 if flight.stage==const.STAGE_CRUISE and \
178 (self._lastTime is None or \
179 (self._lastTime+800)<=state.timestamp):
180 if state.altitude>24500.0:
181 logger.message(state.timestamp,
182 "Cruise speed: %.3f mach" % (state.mach,))
183 else:
184 logger.message(state.timestamp,
185 "Cruise speed: %.0f %s" %
186 (flight.speedFromKnots(state.ias),
187 flight.getEnglishSpeedUnit()))
188 self._lastTime = state.timestamp
189
190#---------------------------------------------------------------------------------------
191
192class SpoilerLogger(StateChecker):
193 """Logger for the cruise speed."""
194 def __init__(self):
195 """Construct the logger."""
196 self._logged = False
197 self._spoilersExtension = None
198
199 def check(self, flight, aircraft, logger, oldState, state):
200 """Log the cruise speed if necessary."""
201 if flight.stage==const.STAGE_LANDING and not self._logged:
202 if state.onTheGround:
203 if state.spoilersExtension!=self._spoilersExtension:
204 logger.message(state.timestamp, "Spoilers deployed")
205 self._logged = True
206 config = flight.config
207 if config.enableSounds and config.speedbrakeAtTD:
208 startSound(const.SOUND_SPEEDBRAKE)
209 else:
210 self._spoilersExtension = state.spoilersExtension
211
212#---------------------------------------------------------------------------------------
213
214class VisibilityChecker(StateChecker):
215 """Inform the pilot of the visibility once when descending below 2000 ft,
216 then when descending below 1000 ft."""
217 def __init__(self):
218 """Construct the visibility checker."""
219 self._informedBelow2000 = False
220 self._informedBelow1000 = False
221
222 def check(self, flight, aircraft, logger, oldState, state):
223 """Check if we need to inform the pilot of the visibility."""
224 if flight.stage==const.STAGE_DESCENT or \
225 flight.stage==const.STAGE_LANDING:
226 if (state.radioAltitude<2000 and not self._informedBelow2000) or \
227 (state.radioAltitude<1000 and not self._informedBelow1000):
228 visibilityString = util.visibility2String(state.visibility)
229 fs.sendMessage(const.MESSAGETYPE_VISIBILITY,
230 "Current visibility: " + visibilityString,
231 5)
232 logger.message(state.timestamp,
233 "Pilot was informed about the visibility: " +
234 visibilityString)
235 self._informedBelow2000 = True
236 self._informedBelow1000 = state.radioAltitude<1000
237
238#---------------------------------------------------------------------------------------
239
240class ApproachCalloutsPlayer(StateChecker):
241 """A state checker that plays a sequence of approach callouts.
242
243 It tracks the altitude during the descent and landing phases and
244 if the altitude crosses one that has a callout associated with and
245 the vertical speed is negative, that callout will be played."""
246 def __init__(self, approachCallouts):
247 """Construct the approach callouts player."""
248 self._approachCallouts = approachCallouts
249 self._altitudes = approachCallouts.getAltitudes(descending = False)
250
251 def check(self, flight, aircraft, logger, oldState, state):
252 """Check if we need to play a callout."""
253 if (flight.stage==const.STAGE_DESCENT or \
254 flight.stage==const.STAGE_LANDING) and state.vs<0:
255 oldRadioAltitude = oldState.radioAltitude
256 radioAltitude = state.radioAltitude
257 for altitude in self._altitudes:
258 if radioAltitude<=altitude and \
259 oldRadioAltitude>altitude:
260 startSound(self._approachCallouts[altitude])
261 break
262
263#---------------------------------------------------------------------------------------
264
265class StateChangeLogger(StateChecker):
266 """Base class for classes the instances of which check if a specific change has
267 occured in the aircraft's state, and log such change."""
268 def __init__(self, logInitial = True, excludedStages = None):
269 """Construct the logger.
270
271 If logInitial is True, the initial value will be logged, not just the
272 changes later.
273
274 If excludedStages is given, it should be a list containing those stages
275 during which the changes should not be logged.
276
277 Child classes should define the following functions:
278 - _changed(self, oldState, state): returns a boolean indicating if the
279 value has changed or not
280 - _getMessage(self, flight, state, forced): return a strings containing
281 the message to log with the new value
282 """
283 self._logInitial = logInitial
284 self._excludedStages = [] if excludedStages is None else excludedStages
285
286 def _getLogTimestamp(self, state, forced):
287 """Get the log timestamp."""
288 return state.timestamp
289
290 def check(self, flight, aircraft, logger, oldState, state):
291 """Check if the state has changed, and if so, log the new state."""
292 if flight.stage in self._excludedStages:
293 return
294
295 shouldLog = False
296 if oldState is None:
297 shouldLog = self._logInitial
298 else:
299 shouldLog = self._changed(oldState, state)
300
301 if shouldLog:
302 self.logState(flight, logger, state)
303
304 def logState(self, flight, logger, state, forced = False):
305 """Log the state."""
306 message = self._getMessage(flight, state, forced)
307 if message is not None:
308 logger.message(self._getLogTimestamp(state, forced), message)
309
310#-------------------------------------------------------------------------------
311
312class SimpleChangeMixin(object):
313 """A mixin that defines a _changed() function which simply calls a function
314 to retrieve the value two monitor for both states and compares them.
315
316 Child classes should define the following function:
317 - _getValue(state): get the value we are interested in."""
318 def _changed(self, oldState, state):
319 """Determine if the value has changed."""
320 currentValue = self._getValue(state)
321 return currentValue is not None and self._getValue(oldState)!=currentValue
322
323#---------------------------------------------------------------------------------------
324
325class SingleValueMixin(object):
326 """A mixin that provides a _getValue() function to query a value from the
327 state using the name of the attribute."""
328 def __init__(self, attrName):
329 """Construct the mixin with the given attribute name."""
330 self._attrName = attrName
331
332 def _getValue(self, state):
333 """Get the value of the attribute from the state."""
334 return getattr(state, self._attrName)
335
336#---------------------------------------------------------------------------------------
337
338class DelayedChangeMixin(object):
339 """A mixin to a StateChangeLogger that stores the old value and reports a
340 change only if the change has been there for a certain amount of time.
341
342 Child classes should define the following function:
343 - _getValue(state): get the value we are interested in."""
344 def __init__(self, minDelay = 3.0, maxDelay = 10.0):
345 """Construct the mixin with the given delay in seconds."""
346 self._minDelay = minDelay
347 self._maxDelay = maxDelay
348 self._oldValue = None
349 self._firstChange = None
350 self._lastChangeState = None
351 self._lastLoggedValue = None
352
353 self._logState = lambda flight, logger, state, forced = False: \
354 StateChangeLogger.logState(self, flight, logger, state,
355 forced = forced)
356 self.logState = lambda flight, logger, state, forced = False: \
357 DelayedChangeMixin.logState(self, flight, logger, state,
358 forced = forced)
359
360 def _changed(self, oldState, state):
361 """Determine if the value has changed."""
362 if self._oldValue is None:
363 self._oldValue = self._getValue(oldState)
364
365 newValue = self._getValue(state)
366 if self._isDifferent(self._oldValue, newValue):
367 if self._lastLoggedValue is not None and \
368 not self._isDifferent(self._lastLoggedValue, newValue):
369 self._firstChange = None
370 else:
371 if self._firstChange is None:
372 self._firstChange = state.timestamp
373 self._lastChangeState = state
374 self._oldValue = newValue
375
376 if self._firstChange is not None:
377 if state.timestamp >= min(self._lastChangeState.timestamp +
378 self._minDelay,
379 self._firstChange + self._maxDelay):
380 self._firstChange = None
381 return True
382
383 return False
384
385 def _getLogTimestamp(self, state, forced):
386 """Get the log timestamp."""
387 return self._lastChangeState.timestamp \
388 if not forced and self._lastChangeState is not None \
389 else state.timestamp
390
391 def _isDifferent(self, oldValue, newValue):
392 """Determine if the given values are different.
393
394 This default implementation checks for simple equality."""
395 return oldValue!=newValue
396
397 def logState(self, flight, logger, state, forced):
398 """Log the given state.
399
400 The value belonging to that state is recorded in _lastLoggedValue.
401
402 It calls _logState to perform the real logging."""
403 self._lastLoggedValue = self._getValue(state)
404 self._logState(flight, logger, state, forced = forced)
405
406#---------------------------------------------------------------------------------------
407
408class TemplateMessageMixin(object):
409 """Mixin to generate a message based on a template.
410
411 Child classes should define the following function:
412 - _getValue(state): get the value we are interested in."""
413 def __init__(self, template):
414 """Construct the mixin."""
415 self._template = template
416
417 def _getMessage(self, flight, state, forced):
418 """Get the message."""
419 value = self._getValue(state)
420 return None if value is None else self._template % (value,)
421
422#---------------------------------------------------------------------------------------
423
424class GenericStateChangeLogger(StateChangeLogger, SingleValueMixin,
425 DelayedChangeMixin, TemplateMessageMixin):
426 """Base for generic state change loggers that monitor a single value in the
427 state possibly with a delay and the logged message comes from a template"""
428 def __init__(self, attrName, template, logInitial = True,
429 excludedStages = None, minDelay = 0.0, maxDelay = 0.0):
430 """Construct the object."""
431 StateChangeLogger.__init__(self, logInitial = logInitial,
432 excludedStages = excludedStages)
433 SingleValueMixin.__init__(self, attrName)
434 DelayedChangeMixin.__init__(self, minDelay = minDelay,
435 maxDelay = maxDelay)
436 TemplateMessageMixin.__init__(self, template)
437 self._getLogTimestamp = \
438 lambda state, forced: \
439 DelayedChangeMixin._getLogTimestamp(self, state, forced)
440
441#---------------------------------------------------------------------------------------
442
443class ForceableLoggerMixin(object):
444 """A mixin for loggers that can be forced to log a certain state."""
445 def forceLog(self, flight, logger, state):
446 """Force logging the given state."""
447 self.logState(flight, logger, state, forced = True)
448
449#---------------------------------------------------------------------------------------
450
451class AltimeterLogger(StateChangeLogger, SingleValueMixin,
452 DelayedChangeMixin):
453 """Logger for the altimeter setting."""
454 def __init__(self):
455 """Construct the logger."""
456 StateChangeLogger.__init__(self, logInitial = True)
457 SingleValueMixin.__init__(self, "altimeter")
458 DelayedChangeMixin.__init__(self)
459 self._getLogTimestamp = \
460 lambda state, forced: \
461 DelayedChangeMixin._getLogTimestamp(self, state, forced)
462
463 def _getMessage(self, flight, state, forced):
464 """Get the message to log on a change."""
465 logState = self._lastChangeState if \
466 self._lastChangeState is not None else state
467 message = "Altimeter: %.2f hPa at %.0f feet" % \
468 (logState.altimeter, logState.altitude)
469 if not logState.altimeterReliable:
470 message += " (u/r)"
471 return message
472
473#---------------------------------------------------------------------------------------
474
475class NAVLogger(StateChangeLogger, DelayedChangeMixin, ForceableLoggerMixin):
476 """Logger for NAV radios.
477
478 It also logs the OBS radial set."""
479 excludedStages = [const.STAGE_BOARDING, const.STAGE_PUSHANDTAXI,
480 const.STAGE_RTO, const.STAGE_TAXIAFTERLAND,
481 const.STAGE_PARKING]
482
483 @staticmethod
484 def getMessage(logName, frequency, obs):
485 """Get the message for the given NAV radio setting."""
486 message = u"%-5s %s" % (logName + ":", frequency)
487 if obs is not None: message += u" (%03d\u00b0)" % (obs,)
488 return message
489
490 def __init__(self, attrName, logName):
491 """Construct the NAV logger."""
492 StateChangeLogger.__init__(self, logInitial = False,
493 excludedStages = self.excludedStages)
494 DelayedChangeMixin.__init__(self)
495
496 self._getLogTimestamp = \
497 lambda state, forced: \
498 DelayedChangeMixin._getLogTimestamp(self, state, forced)
499
500 self._attrName = attrName
501 self._logName = logName
502
503 def _getValue(self, state):
504 """Get the value.
505
506 If both the frequency and the obs settings are available, a tuple
507 containing them is returned, otherwise None."""
508 frequency = getattr(state, self._attrName)
509 obs = getattr(state, self._attrName + "_obs")
510 manual = getattr(state, self._attrName + "_manual")
511 return (frequency, obs, manual)
512
513 def _getMessage(self, flight, state, forced):
514 """Get the message."""
515 (frequency, obs, manual) = self._getValue(state)
516 return None if frequency is None or obs is None or \
517 (not manual and not forced) else \
518 self.getMessage(self._logName, frequency, obs)
519
520 def _isDifferent(self, oldValue, newValue):
521 """Determine if the valie has changed between the given states."""
522 (oldFrequency, oldOBS, _oldManual) = oldValue
523 (newFrequency, newOBS, _newManual) = newValue
524 return oldFrequency!=newFrequency or oldOBS!=newOBS
525
526#---------------------------------------------------------------------------------------
527
528class ILSLogger(NAVLogger):
529 """Logger for the ILS radio setting."""
530 def __init__(self):
531 """Construct the logger."""
532 super(ILSLogger, self).__init__("ils", "ILS")
533
534#---------------------------------------------------------------------------------------
535
536class NAV1Logger(NAVLogger):
537 """Logger for the NAV1 radio setting."""
538 def __init__(self):
539 """Construct the logger."""
540 super(NAV1Logger, self).__init__("nav1", "NAV1")
541
542#---------------------------------------------------------------------------------------
543
544class NAV2Logger(NAVLogger):
545 """Logger for the NAV2 radio setting."""
546 def __init__(self):
547 """Construct the logger."""
548 super(NAV2Logger, self).__init__("nav2", "NAV2")
549
550#---------------------------------------------------------------------------------------
551
552class ADFLogger(GenericStateChangeLogger, ForceableLoggerMixin):
553 """Base class for the ADF loggers."""
554 def __init__(self, attr, logName):
555 """Construct the ADF logger."""
556 GenericStateChangeLogger.__init__(self, attr,
557 "%s: %%s" % (logName,),
558 logInitial = False,
559 excludedStages =
560 NAVLogger.excludedStages,
561 minDelay = 3.0, maxDelay = 10.0)
562
563#---------------------------------------------------------------------------------------
564
565class ADF1Logger(ADFLogger):
566 """Logger for the ADF1 radio setting."""
567 def __init__(self):
568 """Construct the logger."""
569 super(ADF1Logger, self).__init__("adf1", "ADF1")
570
571#---------------------------------------------------------------------------------------
572
573class ADF2Logger(ADFLogger):
574 """Logger for the ADF2 radio setting."""
575 def __init__(self):
576 """Construct the logger."""
577 super(ADF2Logger, self).__init__("adf2", "ADF2")
578
579#---------------------------------------------------------------------------------------
580
581class SquawkLogger(GenericStateChangeLogger):
582 """Logger for the squawk setting."""
583 def __init__(self):
584 """Construct the logger."""
585 super(SquawkLogger, self).__init__("squawk", "Squawk code: %s",
586 minDelay = 3.0, maxDelay = 10.0)
587
588#---------------------------------------------------------------------------------------
589
590class LightsLogger(StateChangeLogger, SingleValueMixin, SimpleChangeMixin):
591 """Base class for the loggers of the various lights."""
592 def __init__(self, attrName, template):
593 """Construct the logger."""
594 StateChangeLogger.__init__(self)
595 SingleValueMixin.__init__(self, attrName)
596
597 self._template = template
598
599 def _getMessage(self, flight, state, forced):
600 """Get the message from the given state."""
601 value = self._getValue(state)
602 if value is None:
603 return None
604 else:
605 return self._template % ("ON" if value else "OFF")
606
607#---------------------------------------------------------------------------------------
608
609class AnticollisionLightsLogger(LightsLogger):
610 """Logger for the anti-collision lights."""
611 def __init__(self):
612 LightsLogger.__init__(self, "antiCollisionLightsOn",
613 "Anti-collision lights: %s")
614
615#---------------------------------------------------------------------------------------
616
617class LandingLightsLogger(LightsLogger):
618 """Logger for the landing lights."""
619 def __init__(self):
620 LightsLogger.__init__(self, "landingLightsOn",
621 "Landing lights: %s")
622
623#---------------------------------------------------------------------------------------
624
625class StrobeLightsLogger(LightsLogger):
626 """Logger for the strobe lights."""
627 def __init__(self):
628 LightsLogger.__init__(self, "strobeLightsOn",
629 "Strobe lights: %s")
630
631#---------------------------------------------------------------------------------------
632
633class NavLightsLogger(LightsLogger):
634 """Logger for the navigational lights."""
635 def __init__(self):
636 LightsLogger.__init__(self, "navLightsOn",
637 "Navigational lights: %s")
638
639#---------------------------------------------------------------------------------------
640
641class FlapsLogger(StateChangeLogger, SingleValueMixin, SimpleChangeMixin):
642 """Logger for the flaps setting."""
643 def __init__(self):
644 """Construct the logger."""
645 StateChangeLogger.__init__(self, logInitial = True,
646 excludedStages =
647 [const.STAGE_BOARDING,
648 const.STAGE_PUSHANDTAXI,
649 const.STAGE_RTO,
650 const.STAGE_TAKEOFF])
651 SingleValueMixin.__init__(self, "flapsSet")
652
653 def _getMessage(self, flight, state, forced):
654 """Get the message to log on a change."""
655 speed = state.groundSpeed if state.groundSpeed<80.0 else state.ias
656 return "Flaps %.0f - %.0f %s" % \
657 (state.flapsSet, flight.speedFromKnots(speed),
658 flight.getEnglishSpeedUnit())
659
660#---------------------------------------------------------------------------------------
661
662class GearsLogger(StateChangeLogger, SingleValueMixin, SimpleChangeMixin):
663 """Logger for the gears state."""
664 def __init__(self):
665 """Construct the logger."""
666 StateChangeLogger.__init__(self, logInitial = True)
667 SingleValueMixin.__init__(self, "gearControlDown")
668
669 def _getMessage(self, flight, state, forced):
670 """Get the message to log on a change."""
671 return "Gears SET to %s at %.0f %s, %.0f feet" % \
672 ("DOWN" if state.gearControlDown else "UP",
673 flight.speedFromKnots(state.ias),
674 flight.getEnglishSpeedUnit(), state.altitude)
675
676#---------------------------------------------------------------------------------------
677
678class APLogger(StateChangeLogger, DelayedChangeMixin):
679 """Log the state of the autopilot."""
680 @staticmethod
681 def _logBoolean(logger, timestamp, what, value):
682 """Log a boolean value.
683
684 what is the name of the value that is being logged."""
685 message = what + " "
686 if value is None:
687 message += "cannot be detected, will not log"
688 else:
689 message += "is " + ("ON" if value else "OFF")
690 logger.message(timestamp, message)
691
692 @staticmethod
693 def _logNumeric(logger, timestamp, what, format, value):
694 """Log a numerical value."""
695 message = what
696 if value is None:
697 message += u" cannot be detected, will not log"
698 else:
699 message += u": " + format % (value,)
700 logger.message(timestamp, message)
701
702 @staticmethod
703 def _logAPMaster(logger, timestamp, state):
704 """Log the AP master state."""
705 APLogger._logBoolean(logger, timestamp, "AP master",
706 state.apMaster)
707
708 @staticmethod
709 def _logAPHeadingHold(logger, timestamp, state):
710 """Log the AP heading hold state."""
711 APLogger._logBoolean(logger, timestamp, "AP heading hold",
712 state.apHeadingHold)
713
714 @staticmethod
715 def _logAPHeading(logger, timestamp, state):
716 """Log the AP heading."""
717 APLogger._logNumeric(logger, timestamp, u"AP heading",
718 u"%03.0f\u00b0", state.apHeading)
719
720 @staticmethod
721 def _logAPAltitudeHold(logger, timestamp, state):
722 """Log the AP altitude hold state."""
723 APLogger._logBoolean(logger, timestamp, "AP altitude hold",
724 state.apAltitudeHold)
725
726 @staticmethod
727 def _logAPAltitude(logger, timestamp, state):
728 """Log the AP heading."""
729 APLogger._logNumeric(logger, timestamp, u"AP altitude",
730 u"%.0f ft", state.apAltitude)
731
732 def __init__(self):
733 """Construct the state logger."""
734 StateChangeLogger.__init__(self)
735 DelayedChangeMixin.__init__(self)
736 self._lastLoggedState = None
737 self.logState = lambda flight, logger, state:\
738 APLogger.logState(self, flight, logger, state)
739
740 def _getValue(self, state):
741 """Convert the relevant values from the given state into a tuple."""
742 return (state.apMaster,
743 state.apHeadingHold, state.apHeading,
744 state.apAltitudeHold, state.apAltitude)
745
746 def _isDifferent(self, oldValue, newValue):
747 """Determine if the given old and new values are different (enough) to
748 be logged."""
749 (oldAPMaster, oldAPHeadingHold, oldAPHeading,
750 oldAPAltitudeHold, oldAPAltitude) = oldValue
751 (apMaster, apHeadingHold, apHeading,
752 apAltitudeHold, apAltitude) = newValue
753
754 if apMaster is not None and apMaster!=oldAPMaster:
755 return True
756 if apMaster is False:
757 return False
758
759 if apHeadingHold is not None and apHeadingHold!=oldAPHeadingHold:
760 return True
761 if apHeadingHold is not False and apHeading is not None and \
762 apHeading!=oldAPHeading:
763 return True
764
765 if apAltitudeHold is not None and apAltitudeHold!=oldAPAltitudeHold:
766 return True
767 if apAltitudeHold is not False and apAltitude is not None and \
768 apAltitude!=oldAPAltitude:
769 return True
770
771 return False
772
773 def logState(self, flight, logger, state):
774 """Log the autopilot state."""
775 timestamp = DelayedChangeMixin._getLogTimestamp(self, state, False)
776 if self._lastLoggedState is None:
777 self._logAPMaster(logger, timestamp, state)
778 if state.apMaster is not False or state.apHeadingHold is None:
779 self._logAPHeadingHold(logger, timestamp, state)
780 if state.apMaster is not False and \
781 (state.apHeadingHold is not False or state.apHeading is None):
782 self._logAPHeading(logger, timestamp, state)
783 if state.apMaster is not False or state.apAltitudeHold is None:
784 self._logAPAltitudeHold(logger, timestamp, state)
785 if state.apMaster is not False and \
786 (state.apAltitudeHold is not False or state.apAltitude is None):
787 self._logAPAltitude(logger, timestamp, state)
788 self._firstCall = False
789 else:
790 oldState = self._lastLoggedState
791
792 apMasterTurnedOn = False
793 if state.apMaster is not None and state.apMaster!=oldState.apMaster:
794 apMasterTurnedOn = state.apMaster
795 self._logAPMaster(logger, timestamp, state)
796
797 if state.apMaster is not False:
798 apHeadingHoldTurnedOn = False
799 if state.apHeadingHold is not None and \
800 (state.apHeadingHold!=oldState.apHeadingHold or
801 apMasterTurnedOn):
802 apHeadingHoldTurnedOn = state.apHeadingHold
803 self._logAPHeadingHold(logger, timestamp, state)
804
805 if state.apHeadingHold is not False and \
806 state.apHeading is not None and \
807 (state.apHeading!=oldState.apHeading or apMasterTurnedOn or
808 apHeadingHoldTurnedOn):
809 self._logAPHeading(logger, timestamp, state)
810
811 apAltitudeHoldTurnedOn = False
812 if state.apAltitudeHold is not None and \
813 (state.apAltitudeHold!=oldState.apAltitudeHold or
814 apMasterTurnedOn):
815 apAltitudeHoldTurnedOn = state.apAltitudeHold
816 self._logAPAltitudeHold(logger, timestamp, state)
817
818 if state.apAltitudeHold is not False and \
819 state.apAltitude is not None and \
820 (state.apAltitude!=oldState.apAltitude or apMasterTurnedOn or
821 apAltitudeHoldTurnedOn):
822 self._logAPAltitude(logger, timestamp, state)
823
824 self._lastLoggedState = state
825
826#---------------------------------------------------------------------------------------
827
828class FaultChecker(StateChecker):
829 """Base class for checkers that look for faults."""
830 @staticmethod
831 def _appendDuring(flight, message):
832 """Append a 'during XXX' test to the given message, depending on the
833 flight stage."""
834 stageStr = const.stage2string(flight.stage)
835 return message if stageStr is None \
836 else (message + " during " + stageStr.upper())
837
838 @staticmethod
839 def _getLinearScore(minFaultValue, maxFaultValue, minScore, maxScore,
840 value):
841 """Get the score for a faulty value where the score is calculated
842 linearly within a certain range."""
843 if value<minFaultValue:
844 return 0
845 elif value>maxFaultValue:
846 return maxScore
847 else:
848 return minScore + (maxScore-minScore) * (value-minFaultValue) / \
849 (maxFaultValue - minFaultValue)
850
851#---------------------------------------------------------------------------------------
852
853class SimpleFaultChecker(FaultChecker):
854 """Base class for fault checkers that check for a single occurence of a
855 faulty condition.
856
857 Child classes should implement the following functions:
858 - isCondition(self, flight, aircraft, oldState, state): should return whether the
859 condition holds
860 - logFault(self, flight, aircraft, logger, oldState, state): log the fault
861 via the logger."""
862 def check(self, flight, aircraft, logger, oldState, state):
863 """Perform the check."""
864 if self.isCondition(flight, aircraft, oldState, state):
865 self.logFault(flight, aircraft, logger, oldState, state)
866
867#---------------------------------------------------------------------------------------
868
869class PatientFaultChecker(FaultChecker):
870 """A fault checker that does not decides on a fault when the condition
871 arises immediately, but can wait some time.
872
873 Child classes should implement the following functions:
874 - isCondition(self, flight, aircraft, oldState, state): should return whether the
875 condition holds
876 - logFault(self, flight, aircraft, logger, oldState, state): log the fault
877 via the logger
878 """
879 def __init__(self, timeout = 2.0):
880 """Construct the fault checker with the given timeout."""
881 self._timeout = timeout
882 self._faultStarted = None
883
884 def getTimeout(self, flight, aircraft, oldState, state):
885 """Get the timeout.
886
887 This default implementation returns the timeout given in the
888 constructor, but child classes might want to enforce a different
889 policy."""
890 return self._timeout
891
892 def check(self, flight, aircraft, logger, oldState, state):
893 """Perform the check."""
894 if self.isCondition(flight, aircraft, oldState, state):
895 if self._faultStarted is None:
896 self._faultStarted = state.timestamp
897 timeout = self.getTimeout(flight, aircraft, oldState, state)
898 if state.timestamp>=(self._faultStarted + timeout):
899 self.logFault(flight, aircraft, logger, oldState, state)
900 self._faultStarted = state.timestamp
901 else:
902 self._faultStarted = None
903
904#---------------------------------------------------------------------------------------
905
906class AntiCollisionLightsChecker(PatientFaultChecker):
907 """Check for the anti-collision light being off at high N1 values."""
908 def isCondition(self, flight, aircraft, oldState, state):
909 """Check if the fault condition holds."""
910 return (flight.stage!=const.STAGE_PARKING or \
911 not flight.config.usingFS2Crew) and \
912 not state.antiCollisionLightsOn and \
913 self.isEngineCondition(state)
914
915 def logFault(self, flight, aircraft, logger, oldState, state):
916 """Log the fault."""
917 flight.handleFault(AntiCollisionLightsChecker, state.timestamp,
918 FaultChecker._appendDuring(flight,
919 "Anti-collision lights were off"),
920 1)
921
922 def isEngineCondition(self, state):
923 """Determine if the engines are in such a state that the lights should
924 be on."""
925 if state.n1 is not None:
926 return max(state.n1)>5
927 elif state.rpm is not None:
928 return max(state.rpm)>0
929 else:
930 return False
931
932#---------------------------------------------------------------------------------------
933
934class TupolevAntiCollisionLightsChecker(AntiCollisionLightsChecker):
935 """Check for the anti-collision light for Tuplev planes."""
936 def isCondition(self, flight, aircraft, oldState, state):
937 """Check if the fault condition holds."""
938 numEnginesRunning = 0
939 for n1 in state.n1:
940 if n1>5: numEnginesRunning += 1
941
942 if flight.stage==const.STAGE_PARKING:
943 return numEnginesRunning<len(state.n1) \
944 and state.antiCollisionLightsOn
945 else:
946 return numEnginesRunning>1 and not state.antiCollisionLightsOn or \
947 numEnginesRunning<1 and state.antiCollisionLightsOn
948
949#---------------------------------------------------------------------------------------
950
951class BankChecker(SimpleFaultChecker):
952 """Check for the bank is within limits."""
953 def isCondition(self, flight, aircraft, oldState, state):
954 """Check if the fault condition holds."""
955 if flight.stage==const.STAGE_CRUISE:
956 bankLimit = 30
957 elif flight.stage in [const.STAGE_TAKEOFF, const.STAGE_CLIMB,
958 const.STAGE_DESCENT, const.STAGE_LANDING]:
959 bankLimit = 35
960 else:
961 return False
962
963 return state.bank>bankLimit or state.bank<-bankLimit
964
965 def logFault(self, flight, aircraft, logger, oldState, state):
966 """Log the fault."""
967 flight.handleFault(BankChecker, state.timestamp,
968 FaultChecker._appendDuring(flight, "Bank too steep"),
969 2)
970
971#---------------------------------------------------------------------------------------
972
973class FlapsRetractChecker(SimpleFaultChecker):
974 """Check if the flaps are not retracted too early."""
975 def __init__(self):
976 """Construct the flaps checker."""
977 self._timeStart = None
978
979 def isCondition(self, flight, aircraft, oldState, state):
980 """Check if the fault condition holds.
981
982 FIXME: check if this really is the intention (FlapsRetractedMistake.java)"""
983 if (flight.stage==const.STAGE_TAKEOFF and not state.onTheGround and
984 aircraft.type!=const.AIRCRAFT_F70) or \
985 (flight.stage==const.STAGE_LANDING and state.onTheGround):
986 if self._timeStart is None:
987 self._timeStart = state.timestamp
988
989 if state.flapsSet==0 and state.timestamp<=(self._timeStart+2.0):
990 return True
991 else:
992 self._timeStart = None
993 return False
994
995 def logFault(self, flight, aircraft, logger, oldState, state):
996 """Log the fault."""
997 flight.handleFault(FlapsRetractChecker, state.timestamp,
998 FaultChecker._appendDuring(flight, "Flaps retracted"),
999 20)
1000
1001#---------------------------------------------------------------------------------------
1002
1003class FlapsSpeedLimitChecker(SimpleFaultChecker):
1004 """Check if the flaps are extended only at the right speeds."""
1005 def isCondition(self, flight, aircraft, oldState, state):
1006 """Check if the fault condition holds."""
1007 speedLimit = aircraft.getFlapsSpeedLimit(state.flapsSet)
1008 return speedLimit is not None and state.smoothedIAS>speedLimit
1009
1010 def logFault(self, flight, aircraft, logger, oldState, state):
1011 """Log the fault."""
1012 flight.handleFault(FlapsSpeedLimitChecker, state.timestamp,
1013 FaultChecker._appendDuring(flight, "Flap speed limit fault"),
1014 5)
1015
1016#---------------------------------------------------------------------------------------
1017
1018class GearsDownChecker(SimpleFaultChecker):
1019 """Check if the gears are down at low altitudes."""
1020 def isCondition(self, flight, aircraft, oldState, state):
1021 """Check if the fault condition holds."""
1022 return state.radioAltitude<10 and not state.gearsDown and \
1023 flight.stage!=const.STAGE_TAKEOFF
1024
1025 def logFault(self, flight, aircraft, logger, oldState, state):
1026 """Log the fault."""
1027 flight.handleNoGo(GearsDownChecker, state.timestamp,
1028 "Gears not down at %.0f feet radio altitude" % \
1029 (state.radioAltitude,),
1030 "GEAR DOWN NO GO")
1031
1032#---------------------------------------------------------------------------------------
1033
1034class GearSpeedLimitChecker(PatientFaultChecker):
1035 """Check if the gears not down at too high a speed."""
1036 def isCondition(self, flight, aircraft, oldState, state):
1037 """Check if the fault condition holds."""
1038 return state.gearsDown and state.smoothedIAS>aircraft.gearSpeedLimit
1039
1040 def logFault(self, flight, aircraft, logger, oldState, state):
1041 """Log the fault."""
1042 flight.handleFault(GearSpeedLimitChecker, state.timestamp,
1043 FaultChecker._appendDuring(flight, "Gear speed limit fault"),
1044 5)
1045
1046#---------------------------------------------------------------------------------------
1047
1048class GLoadChecker(SimpleFaultChecker):
1049 """Check if the G-load does not exceed 2 except during flare."""
1050 def isCondition(self, flight, aircraft, oldState, state):
1051 """Check if the fault condition holds."""
1052 return state.gLoad>2.0 and (flight.stage!=const.STAGE_LANDING or \
1053 state.radioAltitude>=50)
1054
1055 def logFault(self, flight, aircraft, logger, oldState, state):
1056 """Log the fault."""
1057 flight.handleFault(GLoadChecker, state.timestamp,
1058 "G-load was %.2f" % (state.gLoad,),
1059 10)
1060
1061#---------------------------------------------------------------------------------------
1062
1063class LandingLightsChecker(PatientFaultChecker):
1064 """Check if the landing lights are used properly."""
1065 def getTimeout(self, flight, aircraft, oldState, state):
1066 """Get the timeout.
1067
1068 It is the default timeout except for landing and takeoff."""
1069 return 0.0 if flight.stage in [const.STAGE_TAKEOFF,
1070 const.STAGE_LANDING] else self._timeout
1071
1072 def isCondition(self, flight, aircraft, oldState, state):
1073 """Check if the fault condition holds."""
1074 return state.landingLightsOn is not None and \
1075 ((flight.stage==const.STAGE_BOARDING and \
1076 state.landingLightsOn and state.onTheGround) or \
1077 (flight.stage==const.STAGE_TAKEOFF and \
1078 not state.landingLightsOn and not state.onTheGround) or \
1079 (flight.stage in [const.STAGE_CLIMB, const.STAGE_CRUISE,
1080 const.STAGE_DESCENT] and \
1081 state.landingLightsOn and state.altitude>12500) or \
1082 (flight.stage==const.STAGE_LANDING and \
1083 not state.landingLightsOn and state.onTheGround and
1084 state.groundSpeed>50.0) or \
1085 (flight.stage==const.STAGE_PARKING and \
1086 state.landingLightsOn and state.onTheGround))
1087
1088 def logFault(self, flight, aircraft, logger, oldState, state):
1089 """Log the fault."""
1090 score = 0 if flight.stage in [const.STAGE_TAKEOFF,
1091 const.STAGE_LANDING] else 1
1092 message = "Landing lights were %s" % \
1093 (("on" if state.landingLightsOn else "off"),)
1094 flight.handleFault(LandingLightsChecker, state.timestamp,
1095 FaultChecker._appendDuring(flight, message),
1096 score)
1097
1098#---------------------------------------------------------------------------------------
1099
1100class TransponderChecker(PatientFaultChecker):
1101 """Check if the transponder is used properly."""
1102 def __init__(self):
1103 """Construct the transponder checker."""
1104 super(TransponderChecker, self).__init__()
1105 self._liftOffTime = None
1106
1107 def isCondition(self, flight, aircraft, oldState, state):
1108 """Check if the fault condition holds."""
1109 if state.onTheGround:
1110 self._liftOffTime = None
1111 elif self._liftOffTime is None:
1112 self._liftOffTime = state.timestamp
1113
1114 return state.xpdrC is not None and \
1115 ((state.xpdrC and flight.stage in
1116 [const.STAGE_BOARDING, const.STAGE_PARKING]) or \
1117 (not state.xpdrC and
1118 (flight.stage in
1119 [const.STAGE_CRUISE, const.STAGE_DESCENT,
1120 const.STAGE_LANDING, const.STAGE_GOAROUND] or \
1121 ((not state.autoXPDR or \
1122 (self._liftOffTime is not None and
1123 state.timestamp > (self._liftOffTime+8))) and \
1124 flight.stage in
1125 [const.STAGE_TAKEOFF, const.STAGE_RTO, const.STAGE_CLIMB])
1126 )
1127 )
1128 )
1129
1130 def logFault(self, flight, aircraft, logger, oldState, state):
1131 """Log the fault."""
1132 score = 0
1133 message = "Transponder was %s" % \
1134 (("mode C" if state.xpdrC else "standby"),)
1135 flight.handleFault(TransponderChecker, state.timestamp,
1136 FaultChecker._appendDuring(flight, message),
1137 score)
1138
1139#---------------------------------------------------------------------------------------
1140
1141class WeightChecker(PatientFaultChecker):
1142 """Base class for checkers that check that some limit is not exceeded."""
1143 def __init__(self, name):
1144 """Construct the checker."""
1145 super(WeightChecker, self).__init__(timeout = 5.0)
1146 self._name = name
1147
1148 def isCondition(self, flight, aircraft, oldState, state):
1149 """Check if the fault condition holds."""
1150 if flight.entranceExam:
1151 return False
1152
1153 limit = self.getLimit(flight, aircraft, state)
1154 if limit is not None:
1155 #if flight.options.compensation is not None:
1156 # limit += flight.options.compensation
1157 return self.getWeight(state)>limit
1158
1159 return False
1160
1161 def logFault(self, flight, aircraft, logger, oldState, state):
1162 """Log the fault."""
1163 mname = "M" + self._name
1164 flight.handleNoGo(self.__class__, state.timestamp,
1165 "%s exceeded: %s is %.0f kg" % \
1166 (mname, self._name, self.getWeight(state)),
1167 "%s NO GO" % (mname,))
1168
1169 def getWeight(self, state):
1170 """Get the weight that is interesting for us."""
1171 return state.grossWeight
1172
1173#---------------------------------------------------------------------------------------
1174
1175class MLWChecker(WeightChecker):
1176 """Checks if the MLW is not exceeded on landing."""
1177 def __init__(self):
1178 """Construct the checker."""
1179 super(MLWChecker, self).__init__("LW")
1180
1181 def getLimit(self, flight, aircraft, state):
1182 """Get the limit if we are in the right state."""
1183 return aircraft.mlw if flight.stage==const.STAGE_LANDING and \
1184 state.onTheGround and \
1185 not flight.entranceExam else None
1186
1187#---------------------------------------------------------------------------------------
1188
1189class MTOWChecker(WeightChecker):
1190 """Checks if the MTOW is not exceeded on landing."""
1191 def __init__(self):
1192 """Construct the checker."""
1193 super(MTOWChecker, self).__init__("TOW")
1194
1195 def getLimit(self, flight, aircraft, state):
1196 """Get the limit if we are in the right state."""
1197 return aircraft.mtow if flight.stage==const.STAGE_TAKEOFF and \
1198 not flight.entranceExam else None
1199
1200#---------------------------------------------------------------------------------------
1201
1202class MZFWChecker(WeightChecker):
1203 """Checks if the MZFW is not exceeded on landing."""
1204 def __init__(self):
1205 """Construct the checker."""
1206 super(MZFWChecker, self).__init__("ZFW")
1207
1208 def getLimit(self, flight, aircraft, state):
1209 """Get the limit if we are in the right state."""
1210 return aircraft.mzfw if not flight.entranceExam else None
1211
1212 def getWeight(self, state):
1213 """Get the weight that is interesting for us."""
1214 return state.zfw
1215
1216#---------------------------------------------------------------------------------------
1217
1218class NavLightsChecker(PatientFaultChecker):
1219 """Check if the navigational lights are used properly."""
1220 def isCondition(self, flight, aircraft, oldState, state):
1221 """Check if the fault condition holds."""
1222 return flight.stage!=const.STAGE_BOARDING and \
1223 flight.stage!=const.STAGE_PARKING and \
1224 state.navLightsOn is False
1225
1226 def logFault(self, flight, aircraft, logger, oldState, state):
1227 """Log the fault."""
1228 flight.handleFault(NavLightsChecker, state.timestamp,
1229 FaultChecker._appendDuring(flight,
1230 "Navigation lights were off"),
1231 1)
1232
1233#---------------------------------------------------------------------------------------
1234
1235class OverspeedChecker(PatientFaultChecker):
1236 """Check if Vne has been exceeded."""
1237 def __init__(self, timeout = 5.0):
1238 """Construct the checker."""
1239 super(OverspeedChecker, self).__init__(timeout = timeout)
1240
1241 def isCondition(self, flight, aircraft, oldState, state):
1242 """Check if the fault condition holds."""
1243 return state.overspeed
1244
1245 def logFault(self, flight, aircraft, logger, oldState, state):
1246 """Log the fault."""
1247 flight.handleFault(OverspeedChecker, state.timestamp,
1248 FaultChecker._appendDuring(flight, "Overspeed"),
1249 20)
1250
1251#---------------------------------------------------------------------------------------
1252
1253class PayloadChecker(SimpleFaultChecker):
1254 """Check if the payload matches the specification."""
1255 TOLERANCE=550
1256
1257 @staticmethod
1258 def isZFWFaulty(aircraftZFW, flightZFW):
1259 """Check if the given aircraft's ZFW is outside of the limits."""
1260 return aircraftZFW < (flightZFW - PayloadChecker.TOLERANCE) or \
1261 aircraftZFW > (flightZFW + PayloadChecker.TOLERANCE)
1262
1263 def isCondition(self, flight, aircraft, oldState, state):
1264 """Check if the fault condition holds."""
1265 return not flight.entranceExam and \
1266 flight.stage==const.STAGE_PUSHANDTAXI and \
1267 PayloadChecker.isZFWFaulty(state.zfw, flight.zfw)
1268
1269 def logFault(self, flight, aircraft, logger, oldState, state):
1270 """Log the fault."""
1271 flight.handleNoGo(PayloadChecker, state.timestamp,
1272 "ZFW difference is more than %d kgs" % \
1273 (PayloadChecker.TOLERANCE,),
1274 "ZFW NO GO")
1275
1276#---------------------------------------------------------------------------------------
1277
1278class PitotChecker(PatientFaultChecker):
1279 """Check if pitot heat is on."""
1280 def __init__(self):
1281 """Construct the checker."""
1282 super(PitotChecker, self).__init__(timeout = 3.0)
1283
1284 def isCondition(self, flight, aircraft, oldState, state):
1285 """Check if the fault condition holds."""
1286 return state.groundSpeed>80 and not state.pitotHeatOn
1287
1288 def logFault(self, flight, aircraft, logger, oldState, state):
1289 """Log the fault."""
1290 score = 2 if flight.stage in [const.STAGE_TAKEOFF, const.STAGE_CLIMB,
1291 const.STAGE_CRUISE, const.STAGE_DESCENT,
1292 const.STAGE_LANDING] else 0
1293 flight.handleFault(PitotChecker, state.timestamp,
1294 FaultChecker._appendDuring(flight, "Pitot heat was off"),
1295 score)
1296
1297#---------------------------------------------------------------------------------------
1298
1299class ReverserChecker(SimpleFaultChecker):
1300 """Check if the reverser is not used below the speed prescribed for the
1301 aircraft."""
1302 def isCondition(self, flight, aircraft, oldState, state):
1303 """Check if the fault condition holds."""
1304 return flight.stage in [const.STAGE_DESCENT, const.STAGE_LANDING,
1305 const.STAGE_TAXIAFTERLAND] and \
1306 state.reverser and \
1307 state.groundSpeed<aircraft.reverseMinSpeed and max(state.reverser)
1308
1309 def logFault(self, flight, aircraft, logger, oldState, state):
1310 """Log the fault."""
1311 message = "Reverser used below %.0f %s" % \
1312 (flight.speedFromKnots(60), flight.getEnglishSpeedUnit())
1313 flight.handleFault(ReverserChecker, state.timestamp,
1314 FaultChecker._appendDuring(flight, message),
1315 15)
1316
1317#---------------------------------------------------------------------------------------
1318
1319class SpeedChecker(SimpleFaultChecker):
1320 """Check if the speed is in the prescribed limits."""
1321 @staticmethod
1322 def logSpeedFault(flight, state, stage = None, updateID = None):
1323 """Log the speed fault."""
1324 message = "Taxi speed over %.0f %s" % \
1325 (flight.speedFromKnots(50), flight.getEnglishSpeedUnit())
1326 if stage is None:
1327 stage = flight.stage
1328 score = FaultChecker._getLinearScore(50, 80, 10, 15, state.groundSpeed)
1329 return flight.handleFault((SpeedChecker, stage), state.timestamp,
1330 FaultChecker._appendDuring(flight, message),
1331 score, updatePrevious = updateID is None,
1332 updateID = updateID)
1333
1334 def isCondition(self, flight, aircraft, oldState, state):
1335 """Check if the fault condition holds."""
1336 return flight.stage in [const.STAGE_PUSHANDTAXI,
1337 const.STAGE_RTO,
1338 const.STAGE_TAXIAFTERLAND] and \
1339 state.groundSpeed>50
1340
1341 def logFault(self, flight, aircraft, logger, oldState, state):
1342 """Log the fault."""
1343 self.logSpeedFault(flight, state)
1344
1345#---------------------------------------------------------------------------------------
1346
1347class NoStrobeSpeedChecker(StateChecker):
1348 """Checker for the ground speed of aircraft that have no strobe lights by
1349 which to detect the takeoff stage.
1350
1351 If, during the PUSHANDTAXI stage the speed exceeds 50 knots, the state as
1352 saved as a provisional takeoff state. If the speed then decreases below 50
1353 knots, or the plane remains on the ground for more than 20 seconds, a taxi
1354 speed error is logged with the highest ground speed detected. This state is
1355 also stored in the flight object as a possible
1356
1357 If the plane becomes airborne within 20 seconds, the stage becomes TAKEOFF,
1358 and the previously saved takeoff state is logged.
1359
1360 During the TAXIAFTERLAND stage, speed is checked as in case of
1361 SpeedChecker."""
1362 def __init__(self):
1363 """Initialize the speed checker."""
1364 self._takeoffState = None
1365 self._highestSpeedState = None
1366
1367 def check(self, flight, aircraft, logger, oldState, state):
1368 """Check the state as described above."""
1369 if flight.stage==const.STAGE_PUSHANDTAXI or \
1370 flight.stage==const.STAGE_RTO:
1371 self._checkPushAndTaxi(flight, aircraft, state)
1372 elif flight.stage==const.STAGE_TAXIAFTERLAND:
1373 if state.groundSpeed>50:
1374 SpeedChecker.logSpeedFault(flight, state)
1375
1376 def _checkPushAndTaxi(self, flight, aircraft, state):
1377 """Check the speed during the push and taxi stage."""
1378 if state.groundSpeed>50:
1379 if self._takeoffState is None:
1380 self._takeoffState = state
1381 self._highestSpeedState = state
1382 else:
1383 if state.groundSpeed>self._highestSpeedState.groundSpeed:
1384 self._highestSpeedState = state
1385
1386 if not state.onTheGround:
1387 aircraft.setStage(self._takeoffState, const.STAGE_TAKEOFF)
1388 self._takeoffState = None
1389 elif state.timestamp > (self._takeoffState.timestamp + 30):
1390 flight.setRTOState(self._highestSpeedState)
1391 elif self._takeoffState is not None:
1392 flight.setRTOState(self._highestSpeedState)
1393 self._takeoffState = None
1394
1395#---------------------------------------------------------------------------------------
1396
1397class StallChecker(PatientFaultChecker):
1398 """Check if stall occured."""
1399 def isCondition(self, flight, aircraft, oldState, state):
1400 """Check if the fault condition holds."""
1401 return flight.stage in [const.STAGE_TAKEOFF, const.STAGE_CLIMB,
1402 const.STAGE_CRUISE, const.STAGE_DESCENT,
1403 const.STAGE_LANDING] and state.stalled
1404
1405 def logFault(self, flight, aircraft, logger, oldState, state):
1406 """Log the fault."""
1407 score = 40 if flight.stage in [const.STAGE_TAKEOFF,
1408 const.STAGE_LANDING] else 30
1409 flight.handleFault(StallChecker, state.timestamp,
1410 FaultChecker._appendDuring(flight, "Stalled"),
1411 score)
1412
1413#---------------------------------------------------------------------------------------
1414
1415class StrobeLightsChecker(PatientFaultChecker):
1416 """Check if the strobe lights are used properly."""
1417 def isCondition(self, flight, aircraft, oldState, state):
1418 """Check if the fault condition holds."""
1419 return (flight.stage==const.STAGE_BOARDING and \
1420 state.strobeLightsOn and state.onTheGround) or \
1421 (flight.stage==const.STAGE_TAKEOFF and \
1422 not state.strobeLightsOn and not state.gearsDown) or \
1423 (flight.stage in [const.STAGE_CLIMB, const.STAGE_CRUISE,
1424 const.STAGE_DESCENT] and \
1425 not state.strobeLightsOn and not state.onTheGround) or \
1426 (flight.stage==const.STAGE_PARKING and \
1427 state.strobeLightsOn and state.onTheGround)
1428
1429 def logFault(self, flight, aircraft, logger, oldState, state):
1430 """Log the fault."""
1431 message = "Strobe lights were %s" % (("on" if state.strobeLightsOn else "off"),)
1432 flight.handleFault(StrobeLightsChecker, state.timestamp,
1433 FaultChecker._appendDuring(flight, message),
1434 1)
1435
1436#---------------------------------------------------------------------------------------
1437
1438class ThrustChecker(SimpleFaultChecker):
1439 """Check if the thrust setting is not too high during takeoff.
1440
1441 FIXME: is this really so general, for all aircraft?"""
1442 def isCondition(self, flight, aircraft, oldState, state):
1443 """Check if the fault condition holds."""
1444 return flight.stage==const.STAGE_TAKEOFF and \
1445 state.n1 is not None and max(state.n1)>97
1446
1447 def logFault(self, flight, aircraft, logger, oldState, state):
1448 """Log the fault."""
1449 flight.handleFault(ThrustChecker, state.timestamp,
1450 FaultChecker._appendDuring(flight,
1451 "Thrust setting was too high (>97%)"),
1452 FaultChecker._getLinearScore(97, 110, 0, 10,
1453 max(state.n1)),
1454 updatePrevious = True)
1455
1456#---------------------------------------------------------------------------------------
1457
1458class VSChecker(SimpleFaultChecker):
1459 """Check if the vertical speed is not too low at certain altitudes"""
1460 BELOW10000 = -5000
1461 BELOW5000 = -2500
1462 BELOW2500 = -1500
1463 BELOW500 = -1000
1464 TOLERANCE = 1.2
1465
1466 def isCondition(self, flight, aircraft, oldState, state):
1467 """Check if the fault condition holds."""
1468 vs = state.smoothedVS
1469 altitude = state.altitude
1470 return vs < -8000 or vs > 8000 or \
1471 (altitude<500 and vs < (VSChecker.BELOW500 *
1472 VSChecker.TOLERANCE)) or \
1473 (altitude<2500 and vs < (VSChecker.BELOW2500 *
1474 VSChecker.TOLERANCE)) or \
1475 (altitude<5000 and vs < (VSChecker.BELOW5000 *
1476 VSChecker.TOLERANCE)) or \
1477 (altitude<10000 and vs < (VSChecker.BELOW10000 *
1478 VSChecker.TOLERANCE))
1479
1480 def logFault(self, flight, aircraft, logger, oldState, state):
1481 """Log the fault."""
1482 vs = state.smoothedVS
1483
1484 message = "Vertical speed was %.0f feet/min" % (vs,)
1485 if vs>-8000 and vs<8000:
1486 message += " at %.0f feet (exceeds company limit)" % (state.altitude,)
1487
1488 score = 10 if vs<-8000 or vs>8000 else 0
1489
1490 flight.handleFault(VSChecker, state.timestamp,
1491 FaultChecker._appendDuring(flight, message),
1492 score)
1493
1494#---------------------------------------------------------------------------------------
Note: See TracBrowser for help on using the repository browser.