source: src/mlx/checks.py@ 522:63e057098ed7

version_0.21
Last change on this file since 522:63e057098ed7 was 520:6a09d031f8f0, checked in by István Váradi <ivaradi@…>, 11 years ago

Added a delay to the logging of the flaps state (re #204)
File size: 63.7 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 or \
59 (state.strobeLightsOn is None and state.xpdrC):
60 aircraft.setStage(state, const.STAGE_TAKEOFF)
61 elif stage==const.STAGE_TAKEOFF:
62 if not state.gearsDown or \
63 (state.radioAltitude>3000.0 and state.vs>0):
64 aircraft.setStage(state, const.STAGE_CLIMB)
65 elif not state.landingLightsOn and \
66 (state.strobeLightsOn is False or
67 (state.strobeLightsOn is None and not state.xpdrC)) and \
68 state.onTheGround and \
69 state.groundSpeed<50.0:
70 aircraft.setStage(state, const.STAGE_RTO)
71 elif stage==const.STAGE_CLIMB:
72 if (state.altitude+2000) > flight.cruiseAltitude:
73 aircraft.setStage(state, const.STAGE_CRUISE)
74 elif state.radioAltitude<2000.0 and \
75 state.vs < 0.0 and state.gearsDown:
76 aircraft.setStage(state, const.STAGE_LANDING)
77 elif stage==const.STAGE_CRUISE:
78 if (state.altitude+2000) < flight.cruiseAltitude:
79 aircraft.setStage(state, const.STAGE_DESCENT)
80 elif stage==const.STAGE_DESCENT or stage==const.STAGE_GOAROUND:
81 if state.gearsDown and state.radioAltitude<2000.0:
82 aircraft.setStage(state, const.STAGE_LANDING)
83 elif (state.altitude+2000) > flight.cruiseAltitude:
84 aircraft.setStage(state, const.STAGE_CRUISE)
85 elif stage==const.STAGE_LANDING:
86 if state.onTheGround and state.groundSpeed<25.0:
87 aircraft.setStage(state, const.STAGE_TAXIAFTERLAND)
88 elif not state.gearsDown:
89 aircraft.setStage(state, const.STAGE_GOAROUND)
90 elif state.radioAltitude>200 and self._flareStarted:
91 aircraft.cancelFlare()
92 self._flareStarted = False
93 elif state.radioAltitude<150 and not state.onTheGround and \
94 not self._flareStarted:
95 self._flareStarted = True
96 aircraft.prepareFlare()
97 elif stage==const.STAGE_TAXIAFTERLAND:
98 if state.parking and aircraft.checkFlightEnd(state):
99 aircraft.setStage(state, const.STAGE_END)
100
101#---------------------------------------------------------------------------------------
102
103class ACARSSender(StateChecker):
104 """Sender of online ACARS.
105
106 It sends the ACARS every 3 minutes to the MAVA website."""
107
108 ## The interval at which the ACARS are sent
109 INTERVAL = 3*60.0
110
111 def __init__(self, gui):
112 """Construct the ACARS sender."""
113 self._gui = gui
114 self._lastSent = None
115 self._sending = False
116
117 def check(self, flight, aircraft, logger, oldState, state):
118 """If the time has come to send the ACARS, send it."""
119 if self._sending:
120 return
121
122 now = time.time()
123
124 if self._lastSent is not None and \
125 (self._lastSent + ACARSSender.INTERVAL)>now:
126 return
127
128 self._sending = True
129 acars = ACARS(self._gui, state)
130 self._gui.webHandler.sendACARS(self._acarsCallback, acars)
131
132 def _acarsCallback(self, returned, result):
133 """Callback for ACARS sending."""
134 if returned:
135 print "Sent online ACARS"
136 self._lastSent = time.time() if self._lastSent is None \
137 else self._lastSent + ACARSSender.INTERVAL
138 else:
139 print "Failed to send the ACARS"
140 self._sending = False
141
142#---------------------------------------------------------------------------------------
143
144class TakeOffLogger(StateChecker):
145 """Logger for the cruise speed."""
146 def __init__(self):
147 """Construct the logger."""
148 self._onTheGround = True
149
150 def check(self, flight, aircraft, logger, oldState, state):
151 """Log the cruise speed if necessary."""
152 if flight.stage==const.STAGE_TAKEOFF and \
153 self._onTheGround and not state.onTheGround:
154 logger.message(state.timestamp,
155 "Takeoff speed: %.0f %s" % \
156 (flight.speedFromKnots(state.ias),
157 flight.getEnglishSpeedUnit()))
158 logger.message(state.timestamp,
159 "Takeoff heading: %03.0f degrees" % (state.heading,))
160 logger.message(state.timestamp,
161 "Takeoff pitch: %.1f degrees" % (state.pitch,))
162 logger.message(state.timestamp,
163 "Takeoff flaps: %.0f" % (state.flapsSet))
164 logger.message(state.timestamp,
165 "CG/Trim: %.1f%%/%.2f" % \
166 (state.cog*100.0, state.elevatorTrim))
167 self._onTheGround = False
168
169#---------------------------------------------------------------------------------------
170
171class CruiseSpeedLogger(StateChecker):
172 """Logger for the cruise speed."""
173 def __init__(self):
174 """Construct the logger."""
175 self._lastTime = None
176
177 def check(self, flight, aircraft, logger, oldState, state):
178 """Log the cruise speed if necessary."""
179 if flight.stage==const.STAGE_CRUISE and \
180 (self._lastTime is None or \
181 (self._lastTime+800)<=state.timestamp):
182 if state.altitude>24500.0:
183 logger.message(state.timestamp,
184 "Cruise speed: %.3f mach" % (state.mach,))
185 else:
186 logger.message(state.timestamp,
187 "Cruise speed: %.0f %s" %
188 (flight.speedFromKnots(state.ias),
189 flight.getEnglishSpeedUnit()))
190 self._lastTime = state.timestamp
191
192#---------------------------------------------------------------------------------------
193
194class SpoilerLogger(StateChecker):
195 """Logger for the cruise speed."""
196 def __init__(self):
197 """Construct the logger."""
198 self._logged = False
199 self._spoilersExtension = None
200
201 def check(self, flight, aircraft, logger, oldState, state):
202 """Log the cruise speed if necessary."""
203 if flight.stage==const.STAGE_LANDING and not self._logged:
204 if state.onTheGround:
205 if state.spoilersExtension!=self._spoilersExtension:
206 logger.message(state.timestamp, "Spoilers deployed")
207 self._logged = True
208 config = flight.config
209 if config.enableSounds and config.speedbrakeAtTD:
210 startSound(const.SOUND_SPEEDBRAKE)
211 else:
212 self._spoilersExtension = state.spoilersExtension
213
214#---------------------------------------------------------------------------------------
215
216class VisibilityChecker(StateChecker):
217 """Inform the pilot of the visibility once when descending below 2000 ft,
218 then when descending below 1000 ft."""
219 def __init__(self):
220 """Construct the visibility checker."""
221 self._informedBelow2000 = False
222 self._informedBelow1000 = False
223
224 def check(self, flight, aircraft, logger, oldState, state):
225 """Check if we need to inform the pilot of the visibility."""
226 if flight.stage==const.STAGE_DESCENT or \
227 flight.stage==const.STAGE_LANDING:
228 if (state.radioAltitude<2000 and not self._informedBelow2000) or \
229 (state.radioAltitude<1000 and not self._informedBelow1000):
230 visibilityString = util.visibility2String(state.visibility)
231 fs.sendMessage(const.MESSAGETYPE_VISIBILITY,
232 "Current visibility: " + visibilityString,
233 5)
234 logger.message(state.timestamp,
235 "Pilot was informed about the visibility: " +
236 visibilityString)
237 self._informedBelow2000 = True
238 self._informedBelow1000 = state.radioAltitude<1000
239
240#---------------------------------------------------------------------------------------
241
242class ApproachCalloutsPlayer(StateChecker):
243 """A state checker that plays a sequence of approach callouts.
244
245 It tracks the altitude during the descent and landing phases and
246 if the altitude crosses one that has a callout associated with and
247 the vertical speed is negative, that callout will be played."""
248 def __init__(self, approachCallouts):
249 """Construct the approach callouts player."""
250 self._approachCallouts = approachCallouts
251 self._altitudes = approachCallouts.getAltitudes(descending = False)
252
253 def check(self, flight, aircraft, logger, oldState, state):
254 """Check if we need to play a callout."""
255 if (flight.stage==const.STAGE_DESCENT or \
256 flight.stage==const.STAGE_LANDING) and state.vs<0:
257 oldRadioAltitude = oldState.radioAltitude
258 radioAltitude = state.radioAltitude
259 for altitude in self._altitudes:
260 if radioAltitude<=altitude and \
261 oldRadioAltitude>altitude:
262 startSound(self._approachCallouts[altitude])
263 break
264
265#---------------------------------------------------------------------------------------
266
267class StateChangeLogger(StateChecker):
268 """Base class for classes the instances of which check if a specific change has
269 occured in the aircraft's state, and log such change."""
270 def __init__(self, logInitial = True, excludedStages = None):
271 """Construct the logger.
272
273 If logInitial is True, the initial value will be logged, not just the
274 changes later.
275
276 If excludedStages is given, it should be a list containing those stages
277 during which the changes should not be logged.
278
279 Child classes should define the following functions:
280 - _changed(self, oldState, state): returns a boolean indicating if the
281 value has changed or not
282 - _getMessage(self, flight, state, forced): return a strings containing
283 the message to log with the new value
284 """
285 self._logInitial = logInitial
286 self._excludedStages = [] if excludedStages is None else excludedStages
287
288 def _getLogTimestamp(self, state, forced):
289 """Get the log timestamp."""
290 return state.timestamp
291
292 def check(self, flight, aircraft, logger, oldState, state):
293 """Check if the state has changed, and if so, log the new state."""
294 if flight.stage in self._excludedStages:
295 return
296
297 shouldLog = False
298 if oldState is None:
299 shouldLog = self._logInitial
300 else:
301 shouldLog = self._changed(oldState, state)
302
303 if shouldLog:
304 self.logState(flight, logger, state)
305
306 def logState(self, flight, logger, state, forced = False):
307 """Log the state."""
308 message = self._getMessage(flight, state, forced)
309 if message is not None:
310 logger.message(self._getLogTimestamp(state, forced), message)
311
312#-------------------------------------------------------------------------------
313
314class SimpleChangeMixin(object):
315 """A mixin that defines a _changed() function which simply calls a function
316 to retrieve the value two monitor for both states and compares them.
317
318 Child classes should define the following function:
319 - _getValue(state): get the value we are interested in."""
320 def _changed(self, oldState, state):
321 """Determine if the value has changed."""
322 currentValue = self._getValue(state)
323 return currentValue is not None and self._getValue(oldState)!=currentValue
324
325#---------------------------------------------------------------------------------------
326
327class SingleValueMixin(object):
328 """A mixin that provides a _getValue() function to query a value from the
329 state using the name of the attribute."""
330 def __init__(self, attrName):
331 """Construct the mixin with the given attribute name."""
332 self._attrName = attrName
333
334 def _getValue(self, state):
335 """Get the value of the attribute from the state."""
336 return getattr(state, self._attrName)
337
338#---------------------------------------------------------------------------------------
339
340class DelayedChangeMixin(object):
341 """A mixin to a StateChangeLogger that stores the old value and reports a
342 change only if the change has been there for a certain amount of time.
343
344 Child classes should define the following function:
345 - _getValue(state): get the value we are interested in."""
346 def __init__(self, minDelay = 3.0, maxDelay = 10.0):
347 """Construct the mixin with the given delay in seconds."""
348 self._minDelay = minDelay
349 self._maxDelay = maxDelay
350 self._oldValue = None
351 self._firstChange = None
352 self._lastChangeState = None
353 self._lastLoggedValue = None
354
355 self._logState = lambda flight, logger, state, forced = False: \
356 StateChangeLogger.logState(self, flight, logger, state,
357 forced = forced)
358 self.logState = lambda flight, logger, state, forced = False: \
359 DelayedChangeMixin.logState(self, flight, logger, state,
360 forced = forced)
361
362 def _changed(self, oldState, state):
363 """Determine if the value has changed."""
364 if self._oldValue is None:
365 self._oldValue = self._getValue(oldState)
366
367 newValue = self._getValue(state)
368 if self._isDifferent(self._oldValue, newValue):
369 if self._lastLoggedValue is not None and \
370 not self._isDifferent(self._lastLoggedValue, newValue):
371 self._firstChange = None
372 else:
373 if self._firstChange is None:
374 self._firstChange = state.timestamp
375 self._lastChangeState = state
376 self._oldValue = newValue
377
378 if self._firstChange is not None:
379 if state.timestamp >= min(self._lastChangeState.timestamp +
380 self._minDelay,
381 self._firstChange + self._maxDelay):
382 self._firstChange = None
383 return True
384
385 return False
386
387 def _getLogTimestamp(self, state, forced):
388 """Get the log timestamp."""
389 return self._lastChangeState.timestamp \
390 if not forced and self._lastChangeState is not None \
391 else state.timestamp
392
393 def _isDifferent(self, oldValue, newValue):
394 """Determine if the given values are different.
395
396 This default implementation checks for simple equality."""
397 return oldValue!=newValue
398
399 def logState(self, flight, logger, state, forced):
400 """Log the given state.
401
402 The value belonging to that state is recorded in _lastLoggedValue.
403
404 It calls _logState to perform the real logging."""
405 self._lastLoggedValue = self._getValue(state)
406 self._logState(flight, logger, state, forced = forced)
407
408#---------------------------------------------------------------------------------------
409
410class TemplateMessageMixin(object):
411 """Mixin to generate a message based on a template.
412
413 Child classes should define the following function:
414 - _getValue(state): get the value we are interested in."""
415 def __init__(self, template):
416 """Construct the mixin."""
417 self._template = template
418
419 def _getMessage(self, flight, state, forced):
420 """Get the message."""
421 value = self._getValue(state)
422 return None if value is None else self._template % (value,)
423
424#---------------------------------------------------------------------------------------
425
426class GenericStateChangeLogger(StateChangeLogger, SingleValueMixin,
427 DelayedChangeMixin, TemplateMessageMixin):
428 """Base for generic state change loggers that monitor a single value in the
429 state possibly with a delay and the logged message comes from a template"""
430 def __init__(self, attrName, template, logInitial = True,
431 excludedStages = None, minDelay = 0.0, maxDelay = 0.0):
432 """Construct the object."""
433 StateChangeLogger.__init__(self, logInitial = logInitial,
434 excludedStages = excludedStages)
435 SingleValueMixin.__init__(self, attrName)
436 DelayedChangeMixin.__init__(self, minDelay = minDelay,
437 maxDelay = maxDelay)
438 TemplateMessageMixin.__init__(self, template)
439 self._getLogTimestamp = \
440 lambda state, forced: \
441 DelayedChangeMixin._getLogTimestamp(self, state, forced)
442
443#---------------------------------------------------------------------------------------
444
445class ForceableLoggerMixin(object):
446 """A mixin for loggers that can be forced to log a certain state."""
447 def forceLog(self, flight, logger, state):
448 """Force logging the given state."""
449 self.logState(flight, logger, state, forced = True)
450
451#---------------------------------------------------------------------------------------
452
453class AltimeterLogger(StateChangeLogger, SingleValueMixin,
454 DelayedChangeMixin):
455 """Logger for the altimeter setting."""
456 def __init__(self):
457 """Construct the logger."""
458 StateChangeLogger.__init__(self, logInitial = True)
459 SingleValueMixin.__init__(self, "altimeter")
460 DelayedChangeMixin.__init__(self)
461 self._getLogTimestamp = \
462 lambda state, forced: \
463 DelayedChangeMixin._getLogTimestamp(self, state, forced)
464
465 def _getMessage(self, flight, state, forced):
466 """Get the message to log on a change."""
467 logState = self._lastChangeState if \
468 self._lastChangeState is not None else state
469 message = "Altimeter: %.2f hPa at %.0f feet" % \
470 (logState.altimeter, logState.altitude)
471 if not logState.altimeterReliable:
472 message += " (u/r)"
473 return message
474
475#---------------------------------------------------------------------------------------
476
477class NAVLogger(StateChangeLogger, DelayedChangeMixin, ForceableLoggerMixin):
478 """Logger for NAV radios.
479
480 It also logs the OBS radial set."""
481 excludedStages = [const.STAGE_BOARDING, const.STAGE_PUSHANDTAXI,
482 const.STAGE_RTO, const.STAGE_TAXIAFTERLAND,
483 const.STAGE_PARKING]
484
485 @staticmethod
486 def getMessage(logName, frequency, obs):
487 """Get the message for the given NAV radio setting."""
488 message = u"%-5s %s" % (logName + ":", frequency)
489 if obs is not None: message += u" (%03d\u00b0)" % (obs,)
490 return message
491
492 def __init__(self, attrName, logName):
493 """Construct the NAV logger."""
494 StateChangeLogger.__init__(self, logInitial = False,
495 excludedStages = self.excludedStages)
496 DelayedChangeMixin.__init__(self)
497
498 self._getLogTimestamp = \
499 lambda state, forced: \
500 DelayedChangeMixin._getLogTimestamp(self, state, forced)
501
502 self._attrName = attrName
503 self._logName = logName
504
505 def _getValue(self, state):
506 """Get the value.
507
508 If both the frequency and the obs settings are available, a tuple
509 containing them is returned, otherwise None."""
510 frequency = getattr(state, self._attrName)
511 obs = getattr(state, self._attrName + "_obs")
512 manual = getattr(state, self._attrName + "_manual")
513 return (frequency, obs, manual)
514
515 def _getMessage(self, flight, state, forced):
516 """Get the message."""
517 (frequency, obs, manual) = self._getValue(state)
518 return None if frequency is None or obs is None or \
519 (not manual and not forced) else \
520 self.getMessage(self._logName, frequency, obs)
521
522 def _isDifferent(self, oldValue, newValue):
523 """Determine if the valie has changed between the given states."""
524 (oldFrequency, oldOBS, _oldManual) = oldValue
525 (newFrequency, newOBS, _newManual) = newValue
526 return oldFrequency!=newFrequency or oldOBS!=newOBS
527
528#---------------------------------------------------------------------------------------
529
530class ILSLogger(NAVLogger):
531 """Logger for the ILS radio setting."""
532 def __init__(self):
533 """Construct the logger."""
534 super(ILSLogger, self).__init__("ils", "ILS")
535
536#---------------------------------------------------------------------------------------
537
538class NAV1Logger(NAVLogger):
539 """Logger for the NAV1 radio setting."""
540 def __init__(self):
541 """Construct the logger."""
542 super(NAV1Logger, self).__init__("nav1", "NAV1")
543
544#---------------------------------------------------------------------------------------
545
546class NAV2Logger(NAVLogger):
547 """Logger for the NAV2 radio setting."""
548 def __init__(self):
549 """Construct the logger."""
550 super(NAV2Logger, self).__init__("nav2", "NAV2")
551
552#---------------------------------------------------------------------------------------
553
554class ADFLogger(GenericStateChangeLogger, ForceableLoggerMixin):
555 """Base class for the ADF loggers."""
556 def __init__(self, attr, logName):
557 """Construct the ADF logger."""
558 GenericStateChangeLogger.__init__(self, attr,
559 "%s: %%s" % (logName,),
560 logInitial = False,
561 excludedStages =
562 NAVLogger.excludedStages,
563 minDelay = 3.0, maxDelay = 10.0)
564
565#---------------------------------------------------------------------------------------
566
567class ADF1Logger(ADFLogger):
568 """Logger for the ADF1 radio setting."""
569 def __init__(self):
570 """Construct the logger."""
571 super(ADF1Logger, self).__init__("adf1", "ADF1")
572
573#---------------------------------------------------------------------------------------
574
575class ADF2Logger(ADFLogger):
576 """Logger for the ADF2 radio setting."""
577 def __init__(self):
578 """Construct the logger."""
579 super(ADF2Logger, self).__init__("adf2", "ADF2")
580
581#---------------------------------------------------------------------------------------
582
583class SquawkLogger(GenericStateChangeLogger):
584 """Logger for the squawk setting."""
585 def __init__(self):
586 """Construct the logger."""
587 super(SquawkLogger, self).__init__("squawk", "Squawk code: %s",
588 minDelay = 3.0, maxDelay = 10.0)
589
590#---------------------------------------------------------------------------------------
591
592class LightsLogger(StateChangeLogger, SingleValueMixin, SimpleChangeMixin):
593 """Base class for the loggers of the various lights."""
594 def __init__(self, attrName, template):
595 """Construct the logger."""
596 StateChangeLogger.__init__(self)
597 SingleValueMixin.__init__(self, attrName)
598
599 self._template = template
600
601 def _getMessage(self, flight, state, forced):
602 """Get the message from the given state."""
603 value = self._getValue(state)
604 if value is None:
605 return None
606 else:
607 return self._template % ("ON" if value else "OFF")
608
609#---------------------------------------------------------------------------------------
610
611class AnticollisionLightsLogger(LightsLogger):
612 """Logger for the anti-collision lights."""
613 def __init__(self):
614 LightsLogger.__init__(self, "antiCollisionLightsOn",
615 "Anti-collision lights: %s")
616
617#---------------------------------------------------------------------------------------
618
619class LandingLightsLogger(LightsLogger):
620 """Logger for the landing lights."""
621 def __init__(self):
622 LightsLogger.__init__(self, "landingLightsOn",
623 "Landing lights: %s")
624
625#---------------------------------------------------------------------------------------
626
627class StrobeLightsLogger(LightsLogger):
628 """Logger for the strobe lights."""
629 def __init__(self):
630 LightsLogger.__init__(self, "strobeLightsOn",
631 "Strobe lights: %s")
632
633#---------------------------------------------------------------------------------------
634
635class NavLightsLogger(LightsLogger):
636 """Logger for the navigational lights."""
637 def __init__(self):
638 LightsLogger.__init__(self, "navLightsOn",
639 "Navigational lights: %s")
640
641#---------------------------------------------------------------------------------------
642
643class FlapsLogger(StateChangeLogger, SingleValueMixin, DelayedChangeMixin):
644 """Logger for the flaps setting."""
645 def __init__(self):
646 """Construct the logger."""
647 StateChangeLogger.__init__(self, logInitial = True,
648 excludedStages =
649 [const.STAGE_BOARDING,
650 const.STAGE_PUSHANDTAXI,
651 const.STAGE_RTO,
652 const.STAGE_TAKEOFF])
653 SingleValueMixin.__init__(self, "flapsSet")
654 DelayedChangeMixin.__init__(self)
655 self._getLogTimestamp = \
656 lambda state, forced: \
657 DelayedChangeMixin._getLogTimestamp(self, state, forced)
658
659 def _getMessage(self, flight, state, forced):
660 """Get the message to log on a change."""
661 logState = self._lastChangeState if \
662 self._lastChangeState is not None else state
663 speed = logState.groundSpeed if logState.groundSpeed<80.0 \
664 else logState.ias
665 return "Flaps %.0f - %.0f %s" % \
666 (logState.flapsSet, flight.speedFromKnots(speed),
667 flight.getEnglishSpeedUnit())
668
669#---------------------------------------------------------------------------------------
670
671class GearsLogger(StateChangeLogger, SingleValueMixin, SimpleChangeMixin):
672 """Logger for the gears state."""
673 def __init__(self):
674 """Construct the logger."""
675 StateChangeLogger.__init__(self, logInitial = True)
676 SingleValueMixin.__init__(self, "gearControlDown")
677
678 def _getMessage(self, flight, state, forced):
679 """Get the message to log on a change."""
680 return "Gears SET to %s at %.0f %s, %.0f feet" % \
681 ("DOWN" if state.gearControlDown else "UP",
682 flight.speedFromKnots(state.ias),
683 flight.getEnglishSpeedUnit(), state.altitude)
684
685#---------------------------------------------------------------------------------------
686
687class APLogger(StateChangeLogger, DelayedChangeMixin):
688 """Log the state of the autopilot."""
689 @staticmethod
690 def _logBoolean(logger, timestamp, what, value):
691 """Log a boolean value.
692
693 what is the name of the value that is being logged."""
694 message = what + " "
695 if value is None:
696 message += "cannot be detected, will not log"
697 else:
698 message += "is " + ("ON" if value else "OFF")
699 logger.message(timestamp, message)
700
701 @staticmethod
702 def _logNumeric(logger, timestamp, what, format, value):
703 """Log a numerical value."""
704 message = what
705 if value is None:
706 message += u" cannot be detected, will not log"
707 else:
708 message += u": " + format % (value,)
709 logger.message(timestamp, message)
710
711 @staticmethod
712 def _logAPMaster(logger, timestamp, state):
713 """Log the AP master state."""
714 APLogger._logBoolean(logger, timestamp, "AP master",
715 state.apMaster)
716
717 @staticmethod
718 def _logAPHeadingHold(logger, timestamp, state):
719 """Log the AP heading hold state."""
720 APLogger._logBoolean(logger, timestamp, "AP heading hold",
721 state.apHeadingHold)
722
723 @staticmethod
724 def _logAPHeading(logger, timestamp, state):
725 """Log the AP heading."""
726 APLogger._logNumeric(logger, timestamp, u"AP heading",
727 u"%03.0f\u00b0", state.apHeading)
728
729 @staticmethod
730 def _logAPAltitudeHold(logger, timestamp, state):
731 """Log the AP altitude hold state."""
732 APLogger._logBoolean(logger, timestamp, "AP altitude hold",
733 state.apAltitudeHold)
734
735 @staticmethod
736 def _logAPAltitude(logger, timestamp, state):
737 """Log the AP heading."""
738 APLogger._logNumeric(logger, timestamp, u"AP altitude",
739 u"%.0f ft", state.apAltitude)
740
741 def __init__(self):
742 """Construct the state logger."""
743 StateChangeLogger.__init__(self)
744 DelayedChangeMixin.__init__(self)
745 self._lastLoggedState = None
746 self.logState = lambda flight, logger, state:\
747 APLogger.logState(self, flight, logger, state)
748
749 def _getValue(self, state):
750 """Convert the relevant values from the given state into a tuple."""
751 return (state.apMaster,
752 state.apHeadingHold, state.apHeading,
753 state.apAltitudeHold, state.apAltitude)
754
755 def _isDifferent(self, oldValue, newValue):
756 """Determine if the given old and new values are different (enough) to
757 be logged."""
758 (oldAPMaster, oldAPHeadingHold, oldAPHeading,
759 oldAPAltitudeHold, oldAPAltitude) = oldValue
760 (apMaster, apHeadingHold, apHeading,
761 apAltitudeHold, apAltitude) = newValue
762
763 if apMaster is not None and apMaster!=oldAPMaster:
764 return True
765 if apMaster is False:
766 return False
767
768 if apHeadingHold is not None and apHeadingHold!=oldAPHeadingHold:
769 return True
770 if apHeadingHold is not False and apHeading is not None and \
771 apHeading!=oldAPHeading:
772 return True
773
774 if apAltitudeHold is not None and apAltitudeHold!=oldAPAltitudeHold:
775 return True
776 if apAltitudeHold is not False and apAltitude is not None and \
777 apAltitude!=oldAPAltitude:
778 return True
779
780 return False
781
782 def logState(self, flight, logger, state):
783 """Log the autopilot state."""
784 timestamp = DelayedChangeMixin._getLogTimestamp(self, state, False)
785 if self._lastLoggedState is None:
786 self._logAPMaster(logger, timestamp, state)
787 if state.apMaster is not False or state.apHeadingHold is None:
788 self._logAPHeadingHold(logger, timestamp, state)
789 if state.apMaster is not False and \
790 (state.apHeadingHold is not False or state.apHeading is None):
791 self._logAPHeading(logger, timestamp, state)
792 if state.apMaster is not False or state.apAltitudeHold is None:
793 self._logAPAltitudeHold(logger, timestamp, state)
794 if state.apMaster is not False and \
795 (state.apAltitudeHold is not False or state.apAltitude is None):
796 self._logAPAltitude(logger, timestamp, state)
797 self._firstCall = False
798 else:
799 oldState = self._lastLoggedState
800
801 apMasterTurnedOn = False
802 if state.apMaster is not None and state.apMaster!=oldState.apMaster:
803 apMasterTurnedOn = state.apMaster
804 self._logAPMaster(logger, timestamp, state)
805
806 if state.apMaster is not False:
807 apHeadingHoldTurnedOn = False
808 if state.apHeadingHold is not None and \
809 (state.apHeadingHold!=oldState.apHeadingHold or
810 apMasterTurnedOn):
811 apHeadingHoldTurnedOn = state.apHeadingHold
812 self._logAPHeadingHold(logger, timestamp, state)
813
814 if state.apHeadingHold is not False and \
815 state.apHeading is not None and \
816 (state.apHeading!=oldState.apHeading or apMasterTurnedOn or
817 apHeadingHoldTurnedOn):
818 self._logAPHeading(logger, timestamp, state)
819
820 apAltitudeHoldTurnedOn = False
821 if state.apAltitudeHold is not None and \
822 (state.apAltitudeHold!=oldState.apAltitudeHold or
823 apMasterTurnedOn):
824 apAltitudeHoldTurnedOn = state.apAltitudeHold
825 self._logAPAltitudeHold(logger, timestamp, state)
826
827 if state.apAltitudeHold is not False and \
828 state.apAltitude is not None and \
829 (state.apAltitude!=oldState.apAltitude or apMasterTurnedOn or
830 apAltitudeHoldTurnedOn):
831 self._logAPAltitude(logger, timestamp, state)
832
833 self._lastLoggedState = state
834
835#---------------------------------------------------------------------------------------
836
837class FaultChecker(StateChecker):
838 """Base class for checkers that look for faults."""
839 @staticmethod
840 def _appendDuring(flight, message):
841 """Append a 'during XXX' test to the given message, depending on the
842 flight stage."""
843 stageStr = const.stage2string(flight.stage)
844 return message if stageStr is None \
845 else (message + " during " + stageStr.upper())
846
847 @staticmethod
848 def _getLinearScore(minFaultValue, maxFaultValue, minScore, maxScore,
849 value):
850 """Get the score for a faulty value where the score is calculated
851 linearly within a certain range."""
852 if value<minFaultValue:
853 return 0
854 elif value>maxFaultValue:
855 return maxScore
856 else:
857 return minScore + (maxScore-minScore) * (value-minFaultValue) / \
858 (maxFaultValue - minFaultValue)
859
860#---------------------------------------------------------------------------------------
861
862class SimpleFaultChecker(FaultChecker):
863 """Base class for fault checkers that check for a single occurence of a
864 faulty condition.
865
866 Child classes should implement the following functions:
867 - isCondition(self, flight, aircraft, oldState, state): should return whether the
868 condition holds
869 - logFault(self, flight, aircraft, logger, oldState, state): log the fault
870 via the logger."""
871 def check(self, flight, aircraft, logger, oldState, state):
872 """Perform the check."""
873 if self.isCondition(flight, aircraft, oldState, state):
874 self.logFault(flight, aircraft, logger, oldState, state)
875
876#---------------------------------------------------------------------------------------
877
878class PatientFaultChecker(FaultChecker):
879 """A fault checker that does not decides on a fault when the condition
880 arises immediately, but can wait some time.
881
882 Child classes should implement the following functions:
883 - isCondition(self, flight, aircraft, oldState, state): should return whether the
884 condition holds
885 - logFault(self, flight, aircraft, logger, oldState, state): log the fault
886 via the logger
887 """
888 def __init__(self, timeout = 2.0):
889 """Construct the fault checker with the given timeout."""
890 self._timeout = timeout
891 self._faultStarted = None
892
893 def getTimeout(self, flight, aircraft, oldState, state):
894 """Get the timeout.
895
896 This default implementation returns the timeout given in the
897 constructor, but child classes might want to enforce a different
898 policy."""
899 return self._timeout
900
901 def check(self, flight, aircraft, logger, oldState, state):
902 """Perform the check."""
903 if self.isCondition(flight, aircraft, oldState, state):
904 if self._faultStarted is None:
905 self._faultStarted = state.timestamp
906 timeout = self.getTimeout(flight, aircraft, oldState, state)
907 if state.timestamp>=(self._faultStarted + timeout):
908 self.logFault(flight, aircraft, logger, oldState, state)
909 self._faultStarted = state.timestamp
910 else:
911 self._faultStarted = None
912
913#---------------------------------------------------------------------------------------
914
915class AntiCollisionLightsChecker(PatientFaultChecker):
916 """Check for the anti-collision light being off at high N1 values."""
917 def isCondition(self, flight, aircraft, oldState, state):
918 """Check if the fault condition holds."""
919 return (not flight.config.usingFS2Crew or not state.parking or
920 flight.stage!=const.STAGE_TAXIAFTERLAND) and \
921 not state.antiCollisionLightsOn and \
922 self.isEngineCondition(state)
923
924 def logFault(self, flight, aircraft, logger, oldState, state):
925 """Log the fault."""
926 flight.handleFault(AntiCollisionLightsChecker, state.timestamp,
927 FaultChecker._appendDuring(flight,
928 "Anti-collision lights were off"),
929 1)
930
931 def isEngineCondition(self, state):
932 """Determine if the engines are in such a state that the lights should
933 be on."""
934 if state.n1 is not None:
935 return max(state.n1)>5
936 elif state.rpm is not None:
937 return max(state.rpm)>0
938 else:
939 return False
940
941#---------------------------------------------------------------------------------------
942
943class TupolevAntiCollisionLightsChecker(AntiCollisionLightsChecker):
944 """Check for the anti-collision light for Tuplev planes."""
945 def isCondition(self, flight, aircraft, oldState, state):
946 """Check if the fault condition holds."""
947 numEnginesRunning = 0
948 for n1 in state.n1:
949 if n1>5: numEnginesRunning += 1
950
951 if flight.stage==const.STAGE_PARKING or \
952 (flight.stage==const.STAGE_TAXIAFTERLAND and state.parking):
953 return numEnginesRunning<len(state.n1) \
954 and state.antiCollisionLightsOn
955 else:
956 return numEnginesRunning>1 and not state.antiCollisionLightsOn or \
957 numEnginesRunning<1 and state.antiCollisionLightsOn
958
959#---------------------------------------------------------------------------------------
960
961class BankChecker(SimpleFaultChecker):
962 """Check for the bank is within limits."""
963 def isCondition(self, flight, aircraft, oldState, state):
964 """Check if the fault condition holds."""
965 if flight.stage==const.STAGE_CRUISE:
966 bankLimit = 30
967 elif flight.stage in [const.STAGE_TAKEOFF, const.STAGE_CLIMB,
968 const.STAGE_DESCENT, const.STAGE_LANDING]:
969 bankLimit = 35
970 else:
971 return False
972
973 return state.bank>bankLimit or state.bank<-bankLimit
974
975 def logFault(self, flight, aircraft, logger, oldState, state):
976 """Log the fault."""
977 flight.handleFault(BankChecker, state.timestamp,
978 FaultChecker._appendDuring(flight, "Bank too steep"),
979 2)
980
981#---------------------------------------------------------------------------------------
982
983class FlapsRetractChecker(SimpleFaultChecker):
984 """Check if the flaps are not retracted too early."""
985 def __init__(self):
986 """Construct the flaps checker."""
987 self._timeStart = None
988
989 def isCondition(self, flight, aircraft, oldState, state):
990 """Check if the fault condition holds.
991
992 FIXME: check if this really is the intention (FlapsRetractedMistake.java)"""
993 if (flight.stage==const.STAGE_TAKEOFF and not state.onTheGround and
994 aircraft.type!=const.AIRCRAFT_F70) or \
995 (flight.stage==const.STAGE_LANDING and state.onTheGround):
996 if self._timeStart is None:
997 self._timeStart = state.timestamp
998
999 if state.flapsSet==0 and state.timestamp<=(self._timeStart+2.0):
1000 return True
1001 else:
1002 self._timeStart = None
1003 return False
1004
1005 def logFault(self, flight, aircraft, logger, oldState, state):
1006 """Log the fault."""
1007 flight.handleFault(FlapsRetractChecker, state.timestamp,
1008 FaultChecker._appendDuring(flight, "Flaps retracted"),
1009 20)
1010
1011#---------------------------------------------------------------------------------------
1012
1013class FlapsSpeedLimitChecker(SimpleFaultChecker):
1014 """Check if the flaps are extended only at the right speeds."""
1015 def isCondition(self, flight, aircraft, oldState, state):
1016 """Check if the fault condition holds."""
1017 speedLimit = aircraft.getFlapsSpeedLimit(state.flapsSet)
1018 return speedLimit is not None and state.smoothedIAS>speedLimit
1019
1020 def logFault(self, flight, aircraft, logger, oldState, state):
1021 """Log the fault."""
1022 flight.handleFault(FlapsSpeedLimitChecker, state.timestamp,
1023 FaultChecker._appendDuring(flight, "Flap speed limit fault"),
1024 5)
1025
1026#---------------------------------------------------------------------------------------
1027
1028class GearsDownChecker(SimpleFaultChecker):
1029 """Check if the gears are down at low altitudes."""
1030 def isCondition(self, flight, aircraft, oldState, state):
1031 """Check if the fault condition holds."""
1032 return state.radioAltitude<10 and not state.gearsDown and \
1033 flight.stage!=const.STAGE_TAKEOFF
1034
1035 def logFault(self, flight, aircraft, logger, oldState, state):
1036 """Log the fault."""
1037 flight.handleNoGo(GearsDownChecker, state.timestamp,
1038 "Gears not down at %.0f feet radio altitude" % \
1039 (state.radioAltitude,),
1040 "GEAR DOWN NO GO")
1041
1042#---------------------------------------------------------------------------------------
1043
1044class GearSpeedLimitChecker(PatientFaultChecker):
1045 """Check if the gears not down at too high a speed."""
1046 def isCondition(self, flight, aircraft, oldState, state):
1047 """Check if the fault condition holds."""
1048 return state.gearsDown and state.smoothedIAS>aircraft.gearSpeedLimit
1049
1050 def logFault(self, flight, aircraft, logger, oldState, state):
1051 """Log the fault."""
1052 flight.handleFault(GearSpeedLimitChecker, state.timestamp,
1053 FaultChecker._appendDuring(flight, "Gear speed limit fault"),
1054 5)
1055
1056#---------------------------------------------------------------------------------------
1057
1058class GLoadChecker(SimpleFaultChecker):
1059 """Check if the G-load does not exceed 2 except during flare."""
1060 def isCondition(self, flight, aircraft, oldState, state):
1061 """Check if the fault condition holds."""
1062 return state.gLoad>2.0 and not state.onTheGround and \
1063 (flight.stage!=const.STAGE_LANDING or state.radioAltitude>=50)
1064
1065 def logFault(self, flight, aircraft, logger, oldState, state):
1066 """Log the fault."""
1067 flight.handleFault(GLoadChecker, state.timestamp,
1068 "G-load was %.2f" % (state.gLoad,),
1069 10)
1070
1071#---------------------------------------------------------------------------------------
1072
1073class LandingLightsChecker(PatientFaultChecker):
1074 """Check if the landing lights are used properly."""
1075 def getTimeout(self, flight, aircraft, oldState, state):
1076 """Get the timeout.
1077
1078 It is the default timeout except for landing and takeoff."""
1079 return 0.0 if flight.stage in [const.STAGE_TAKEOFF,
1080 const.STAGE_LANDING] else self._timeout
1081
1082 def isCondition(self, flight, aircraft, oldState, state):
1083 """Check if the fault condition holds."""
1084 return state.landingLightsOn is not None and \
1085 ((flight.stage==const.STAGE_BOARDING and \
1086 state.landingLightsOn and state.onTheGround) or \
1087 (flight.stage==const.STAGE_TAKEOFF and \
1088 not state.landingLightsOn and not state.onTheGround) or \
1089 (flight.stage in [const.STAGE_CLIMB, const.STAGE_CRUISE,
1090 const.STAGE_DESCENT] and \
1091 state.landingLightsOn and state.altitude>12500) or \
1092 (flight.stage==const.STAGE_LANDING and \
1093 not state.landingLightsOn and state.onTheGround and
1094 state.groundSpeed>50.0) or \
1095 (flight.stage==const.STAGE_PARKING and \
1096 state.landingLightsOn and state.onTheGround))
1097
1098 def logFault(self, flight, aircraft, logger, oldState, state):
1099 """Log the fault."""
1100 score = 0 if flight.stage in [const.STAGE_TAKEOFF,
1101 const.STAGE_LANDING] else 1
1102 message = "Landing lights were %s" % \
1103 (("on" if state.landingLightsOn else "off"),)
1104 flight.handleFault(LandingLightsChecker, state.timestamp,
1105 FaultChecker._appendDuring(flight, message),
1106 score)
1107
1108#---------------------------------------------------------------------------------------
1109
1110class TransponderChecker(PatientFaultChecker):
1111 """Check if the transponder is used properly."""
1112 def __init__(self):
1113 """Construct the transponder checker."""
1114 super(TransponderChecker, self).__init__()
1115 self._liftOffTime = None
1116
1117 def isCondition(self, flight, aircraft, oldState, state):
1118 """Check if the fault condition holds."""
1119 if state.onTheGround:
1120 self._liftOffTime = None
1121 elif self._liftOffTime is None:
1122 self._liftOffTime = state.timestamp
1123
1124 return state.xpdrC is not None and \
1125 ((state.xpdrC and flight.stage in
1126 [const.STAGE_BOARDING, const.STAGE_PARKING]) or \
1127 (not state.xpdrC and
1128 (flight.stage in
1129 [const.STAGE_CRUISE, const.STAGE_DESCENT,
1130 const.STAGE_GOAROUND] or \
1131 (flight.stage==const.STAGE_LANDING and
1132 state.groundSpeed>50.0) or \
1133 ((not state.autoXPDR or \
1134 (self._liftOffTime is not None and
1135 state.timestamp > (self._liftOffTime+8))) and \
1136 ((flight.stage==const.STAGE_TAKEOFF and
1137 not state.onTheGround) or flight.stage==const.STAGE_CLIMB))
1138 )
1139 )
1140 )
1141
1142 def logFault(self, flight, aircraft, logger, oldState, state):
1143 """Log the fault."""
1144 score = 0
1145 message = "Transponder was %s" % \
1146 (("mode C" if state.xpdrC else "standby"),)
1147 flight.handleFault(TransponderChecker, state.timestamp,
1148 FaultChecker._appendDuring(flight, message),
1149 score)
1150
1151#---------------------------------------------------------------------------------------
1152
1153class WeightChecker(PatientFaultChecker):
1154 """Base class for checkers that check that some limit is not exceeded."""
1155 def __init__(self, name):
1156 """Construct the checker."""
1157 super(WeightChecker, self).__init__(timeout = 5.0)
1158 self._name = name
1159
1160 def isCondition(self, flight, aircraft, oldState, state):
1161 """Check if the fault condition holds."""
1162 if flight.entranceExam:
1163 return False
1164
1165 limit = self.getLimit(flight, aircraft, state)
1166 if limit is not None:
1167 #if flight.options.compensation is not None:
1168 # limit += flight.options.compensation
1169 return self.getWeight(state)>limit
1170
1171 return False
1172
1173 def logFault(self, flight, aircraft, logger, oldState, state):
1174 """Log the fault."""
1175 mname = "M" + self._name
1176 flight.handleNoGo(self.__class__, state.timestamp,
1177 "%s exceeded: %s is %.0f kg" % \
1178 (mname, self._name, self.getWeight(state)),
1179 "%s NO GO" % (mname,))
1180
1181 def getWeight(self, state):
1182 """Get the weight that is interesting for us."""
1183 return state.grossWeight
1184
1185#---------------------------------------------------------------------------------------
1186
1187class MLWChecker(WeightChecker):
1188 """Checks if the MLW is not exceeded on landing."""
1189 def __init__(self):
1190 """Construct the checker."""
1191 super(MLWChecker, self).__init__("LW")
1192
1193 def getLimit(self, flight, aircraft, state):
1194 """Get the limit if we are in the right state."""
1195 return aircraft.mlw if flight.stage==const.STAGE_LANDING and \
1196 state.onTheGround and \
1197 not flight.entranceExam else None
1198
1199#---------------------------------------------------------------------------------------
1200
1201class MTOWChecker(WeightChecker):
1202 """Checks if the MTOW is not exceeded on landing."""
1203 def __init__(self):
1204 """Construct the checker."""
1205 super(MTOWChecker, self).__init__("TOW")
1206
1207 def getLimit(self, flight, aircraft, state):
1208 """Get the limit if we are in the right state."""
1209 return aircraft.mtow if flight.stage==const.STAGE_TAKEOFF and \
1210 not flight.entranceExam else None
1211
1212#---------------------------------------------------------------------------------------
1213
1214class MZFWChecker(WeightChecker):
1215 """Checks if the MZFW is not exceeded on landing."""
1216 def __init__(self):
1217 """Construct the checker."""
1218 super(MZFWChecker, self).__init__("ZFW")
1219
1220 def getLimit(self, flight, aircraft, state):
1221 """Get the limit if we are in the right state."""
1222 return aircraft.mzfw if not flight.entranceExam else None
1223
1224 def getWeight(self, state):
1225 """Get the weight that is interesting for us."""
1226 return state.zfw
1227
1228#---------------------------------------------------------------------------------------
1229
1230class NavLightsChecker(PatientFaultChecker):
1231 """Check if the navigational lights are used properly."""
1232 def isCondition(self, flight, aircraft, oldState, state):
1233 """Check if the fault condition holds."""
1234 return flight.stage!=const.STAGE_BOARDING and \
1235 flight.stage!=const.STAGE_PARKING and \
1236 state.navLightsOn is False
1237
1238 def logFault(self, flight, aircraft, logger, oldState, state):
1239 """Log the fault."""
1240 flight.handleFault(NavLightsChecker, state.timestamp,
1241 FaultChecker._appendDuring(flight,
1242 "Navigation lights were off"),
1243 1)
1244
1245#---------------------------------------------------------------------------------------
1246
1247class OverspeedChecker(PatientFaultChecker):
1248 """Check if Vne has been exceeded."""
1249 def __init__(self, timeout = 30.0):
1250 """Construct the checker."""
1251 super(OverspeedChecker, self).__init__(timeout = timeout)
1252
1253 def isCondition(self, flight, aircraft, oldState, state):
1254 """Check if the fault condition holds."""
1255 return state.overspeed
1256
1257 def logFault(self, flight, aircraft, logger, oldState, state):
1258 """Log the fault."""
1259 flight.handleFault(OverspeedChecker, state.timestamp,
1260 FaultChecker._appendDuring(flight, "Overspeed"),
1261 20)
1262
1263#---------------------------------------------------------------------------------------
1264
1265class PayloadChecker(SimpleFaultChecker):
1266 """Check if the payload matches the specification."""
1267 TOLERANCE=550
1268
1269 @staticmethod
1270 def isZFWFaulty(aircraftZFW, flightZFW):
1271 """Check if the given aircraft's ZFW is outside of the limits."""
1272 return aircraftZFW < (flightZFW - PayloadChecker.TOLERANCE) or \
1273 aircraftZFW > (flightZFW + PayloadChecker.TOLERANCE)
1274
1275 def isCondition(self, flight, aircraft, oldState, state):
1276 """Check if the fault condition holds."""
1277 return not flight.entranceExam and \
1278 flight.stage==const.STAGE_PUSHANDTAXI and \
1279 PayloadChecker.isZFWFaulty(state.zfw, flight.zfw)
1280
1281 def logFault(self, flight, aircraft, logger, oldState, state):
1282 """Log the fault."""
1283 flight.handleNoGo(PayloadChecker, state.timestamp,
1284 "ZFW difference is more than %d kgs" % \
1285 (PayloadChecker.TOLERANCE,),
1286 "ZFW NO GO")
1287
1288#---------------------------------------------------------------------------------------
1289
1290class PitotChecker(PatientFaultChecker):
1291 """Check if pitot heat is on."""
1292 def __init__(self):
1293 """Construct the checker."""
1294 super(PitotChecker, self).__init__(timeout = 3.0)
1295
1296 def isCondition(self, flight, aircraft, oldState, state):
1297 """Check if the fault condition holds."""
1298 return state.groundSpeed>80 and not state.pitotHeatOn
1299
1300 def logFault(self, flight, aircraft, logger, oldState, state):
1301 """Log the fault."""
1302 score = 2 if flight.stage in [const.STAGE_TAKEOFF, const.STAGE_CLIMB,
1303 const.STAGE_CRUISE, const.STAGE_DESCENT,
1304 const.STAGE_LANDING] else 0
1305 flight.handleFault(PitotChecker, state.timestamp,
1306 FaultChecker._appendDuring(flight, "Pitot heat was off"),
1307 score)
1308
1309#---------------------------------------------------------------------------------------
1310
1311class ReverserChecker(SimpleFaultChecker):
1312 """Check if the reverser is not used below the speed prescribed for the
1313 aircraft."""
1314 def isCondition(self, flight, aircraft, oldState, state):
1315 """Check if the fault condition holds."""
1316 return flight.stage in [const.STAGE_DESCENT, const.STAGE_LANDING,
1317 const.STAGE_TAXIAFTERLAND] and \
1318 state.reverser and \
1319 state.groundSpeed<aircraft.reverseMinSpeed and max(state.reverser)
1320
1321 def logFault(self, flight, aircraft, logger, oldState, state):
1322 """Log the fault."""
1323 message = "Reverser used below %.0f %s" % \
1324 (flight.speedFromKnots(60), flight.getEnglishSpeedUnit())
1325 flight.handleFault(ReverserChecker, state.timestamp,
1326 FaultChecker._appendDuring(flight, message),
1327 15)
1328
1329#---------------------------------------------------------------------------------------
1330
1331class SpeedChecker(SimpleFaultChecker):
1332 """Check if the speed is in the prescribed limits."""
1333 @staticmethod
1334 def logSpeedFault(flight, state, stage = None, updateID = None):
1335 """Log the speed fault."""
1336 message = "Taxi speed over %.0f %s" % \
1337 (flight.speedFromKnots(50), flight.getEnglishSpeedUnit())
1338 if stage is None:
1339 stage = flight.stage
1340 score = FaultChecker._getLinearScore(50, 80, 10, 15, state.groundSpeed)
1341 return flight.handleFault((SpeedChecker, stage), state.timestamp,
1342 FaultChecker._appendDuring(flight, message),
1343 score, updatePrevious = updateID is None,
1344 updateID = updateID)
1345
1346 def isCondition(self, flight, aircraft, oldState, state):
1347 """Check if the fault condition holds."""
1348 return flight.stage in [const.STAGE_PUSHANDTAXI,
1349 const.STAGE_RTO,
1350 const.STAGE_TAXIAFTERLAND] and \
1351 state.groundSpeed>50
1352
1353 def logFault(self, flight, aircraft, logger, oldState, state):
1354 """Log the fault."""
1355 self.logSpeedFault(flight, state)
1356
1357#---------------------------------------------------------------------------------------
1358
1359class NoStrobeSpeedChecker(StateChecker):
1360 """Checker for the ground speed of aircraft that have no strobe lights by
1361 which to detect the takeoff stage.
1362
1363 If, during the PUSHANDTAXI stage the speed exceeds 50 knots, the state as
1364 saved as a provisional takeoff state. If the speed then decreases below 50
1365 knots, or the plane remains on the ground for more than 40 seconds, a taxi
1366 speed error is logged with the highest ground speed detected. This state is
1367 also stored in the flight object as a possible
1368
1369 If the plane becomes airborne within 40 seconds, the stage becomes TAKEOFF,
1370 and the previously saved takeoff state is logged.
1371
1372 During the TAXIAFTERLAND stage, speed is checked as in case of
1373 SpeedChecker."""
1374 def __init__(self):
1375 """Initialize the speed checker."""
1376 self._takeoffState = None
1377 self._highestSpeedState = None
1378
1379 def check(self, flight, aircraft, logger, oldState, state):
1380 """Check the state as described above."""
1381 if flight.stage==const.STAGE_PUSHANDTAXI or \
1382 flight.stage==const.STAGE_RTO:
1383 self._checkPushAndTaxi(flight, aircraft, state)
1384 elif flight.stage==const.STAGE_TAXIAFTERLAND:
1385 if state.groundSpeed>50:
1386 SpeedChecker.logSpeedFault(flight, state)
1387 else:
1388 self._takeoffState = None
1389
1390 def _checkPushAndTaxi(self, flight, aircraft, state):
1391 """Check the speed during the push and taxi stage."""
1392 if state.groundSpeed>50:
1393 if self._takeoffState is None:
1394 self._takeoffState = state
1395 self._highestSpeedState = state
1396 else:
1397 if state.groundSpeed>self._highestSpeedState.groundSpeed:
1398 self._highestSpeedState = state
1399
1400 if not state.onTheGround:
1401 aircraft.setStage(self._takeoffState, const.STAGE_TAKEOFF)
1402 self._takeoffState = None
1403 elif state.timestamp > (self._takeoffState.timestamp + 40):
1404 flight.setRTOState(self._highestSpeedState)
1405 elif self._takeoffState is not None:
1406 flight.setRTOState(self._highestSpeedState)
1407 self._takeoffState = None
1408
1409#---------------------------------------------------------------------------------------
1410
1411class StallChecker(PatientFaultChecker):
1412 """Check if stall occured."""
1413 def isCondition(self, flight, aircraft, oldState, state):
1414 """Check if the fault condition holds."""
1415 return flight.stage in [const.STAGE_TAKEOFF, const.STAGE_CLIMB,
1416 const.STAGE_CRUISE, const.STAGE_DESCENT,
1417 const.STAGE_LANDING] and state.stalled
1418
1419 def logFault(self, flight, aircraft, logger, oldState, state):
1420 """Log the fault."""
1421 score = 40 if flight.stage in [const.STAGE_TAKEOFF,
1422 const.STAGE_LANDING] else 30
1423 flight.handleFault(StallChecker, state.timestamp,
1424 FaultChecker._appendDuring(flight, "Stalled"),
1425 score)
1426
1427#---------------------------------------------------------------------------------------
1428
1429class StrobeLightsChecker(PatientFaultChecker):
1430 """Check if the strobe lights are used properly."""
1431 def isCondition(self, flight, aircraft, oldState, state):
1432 """Check if the fault condition holds."""
1433 return state.strobeLightsOn is not None and \
1434 ((flight.stage==const.STAGE_BOARDING and \
1435 state.strobeLightsOn and state.onTheGround) or \
1436 (flight.stage==const.STAGE_TAKEOFF and \
1437 not state.strobeLightsOn and not state.gearsDown) or \
1438 (flight.stage in [const.STAGE_CLIMB, const.STAGE_CRUISE,
1439 const.STAGE_DESCENT] and \
1440 not state.strobeLightsOn and not state.onTheGround) or \
1441 (flight.stage==const.STAGE_PARKING and \
1442 state.strobeLightsOn and state.onTheGround))
1443
1444 def logFault(self, flight, aircraft, logger, oldState, state):
1445 """Log the fault."""
1446 message = "Strobe lights were %s" % (("on" if state.strobeLightsOn else "off"),)
1447 flight.handleFault(StrobeLightsChecker, state.timestamp,
1448 FaultChecker._appendDuring(flight, message),
1449 1)
1450
1451#---------------------------------------------------------------------------------------
1452
1453class ThrustChecker(SimpleFaultChecker):
1454 """Check if the thrust setting is not too high during takeoff.
1455
1456 FIXME: is this really so general, for all aircraft?"""
1457 def isCondition(self, flight, aircraft, oldState, state):
1458 """Check if the fault condition holds."""
1459 return flight.stage==const.STAGE_TAKEOFF and \
1460 state.n1 is not None and max(state.n1)>97
1461
1462 def logFault(self, flight, aircraft, logger, oldState, state):
1463 """Log the fault."""
1464 flight.handleFault(ThrustChecker, state.timestamp,
1465 FaultChecker._appendDuring(flight,
1466 "Thrust setting was too high (>97%)"),
1467 FaultChecker._getLinearScore(97, 110, 0, 10,
1468 max(state.n1)),
1469 updatePrevious = True)
1470
1471#---------------------------------------------------------------------------------------
1472
1473class VSChecker(SimpleFaultChecker):
1474 """Check if the vertical speed is not too low at certain altitudes"""
1475 BELOW10000 = -5000
1476 BELOW5000 = -2500
1477 BELOW2500 = -1500
1478 BELOW500 = -1000
1479 TOLERANCE = 1.2
1480
1481 def isCondition(self, flight, aircraft, oldState, state):
1482 """Check if the fault condition holds."""
1483 vs = state.smoothedVS
1484 altitude = state.altitude
1485 return vs < -8000 or vs > 8000 or \
1486 (altitude<500 and vs < (VSChecker.BELOW500 *
1487 VSChecker.TOLERANCE)) or \
1488 (altitude<2500 and vs < (VSChecker.BELOW2500 *
1489 VSChecker.TOLERANCE)) or \
1490 (altitude<5000 and vs < (VSChecker.BELOW5000 *
1491 VSChecker.TOLERANCE)) or \
1492 (altitude<10000 and vs < (VSChecker.BELOW10000 *
1493 VSChecker.TOLERANCE))
1494
1495 def logFault(self, flight, aircraft, logger, oldState, state):
1496 """Log the fault."""
1497 vs = state.smoothedVS
1498
1499 message = "Vertical speed was %.0f feet/min" % (vs,)
1500 if vs>-8000 and vs<8000:
1501 message += " at %.0f feet (exceeds company limit)" % (state.altitude,)
1502
1503 score = 10 if vs<-8000 or vs>8000 else 0
1504
1505 flight.handleFault(VSChecker, state.timestamp,
1506 FaultChecker._appendDuring(flight, message),
1507 score)
1508
1509#---------------------------------------------------------------------------------------
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