Пример #1
0
    def CanPerform(self, event, universe):
        if (self._task.Type == TaskType.IMAGING):
            value = self._task.Target.Value
            pixels = self._lowQualityPixels
            timetocapture = self._lowQualityTime
            if (value <= self._highQualityTime
                    and value >= self._midQualityTime):
                pixels = self._midQualityPixels
                timetocapture = self._midQualityTime
            if (value > self._highQualityTime):
                pixels = self._highQualityPixels
                timetocapture = self._highQualityTime

            es = event.GetEventStart(self.Asset)
            ts = event.GetTaskStart(self.Asset)
            te = event.GetTaskEnd(self.Asset)
            if (ts > te):
                # Logger.Report("EOSensor lost access")
                return False
            te = ts + timetocapture
            event.SetTaskEnd(self.Asset, te)

            position = self.Asset.AssetDynamicState
            timage = ts + timetocapture / 2
            m_SC_pos_at_tf_ECI = position.PositionECI(timage)
            m_target_pos_at_tf_ECI = self._task.Target.DynamicState.PositionECI(
                timage)
            m_pv = m_target_pos_at_tf_ECI - m_SC_pos_at_tf_ECI
            pos_norm = -m_SC_pos_at_tf_ECI / Matrix[System.Double].Norm(
                -m_SC_pos_at_tf_ECI)
            pv_norm = m_pv / Matrix[System.Double].Norm(m_pv)

            incidenceang = 90 - 180 / Math.PI * Math.Acos(
                Matrix[System.Double].Dot(pos_norm, pv_norm))
            self._newState.AddValue(
                self.INCIDENCE_KEY, KeyValuePair[System.Double,
                                                 System.Double](timage,
                                                                incidenceang))
            self._newState.AddValue(
                self.INCIDENCE_KEY,
                KeyValuePair[System.Double, System.Double](timage + 1, 0.0))

            self._newState.AddValue(
                self.PIXELS_KEY, KeyValuePair[System.Double,
                                              System.Double](timage, pixels))
            self._newState.AddValue(
                self.PIXELS_KEY, KeyValuePair[System.Double,
                                              System.Double](timage + 1, 0.0))

            self._newState.AddValue(
                self.EOON_KEY, KeyValuePair[System.Double,
                                            System.Boolean](ts, True))
            self._newState.AddValue(
                self.EOON_KEY, KeyValuePair[System.Double,
                                            System.Boolean](te, False))
            return True
Пример #2
0
    def CanPerform(self, event, universe):
        if (self._task.Type == TaskType.IMAGING):
            #large timestep so we have low enough torques
            # or prep for comms but very involved process

            #change weight for comms targets so that downlink > IMAGING

            timetocapture = 30
            # timetocapture = self._readtime		# this value is determined purely by size of ssdr
            es = event.GetEventStart(self.Asset)
            ts = event.GetTaskStart(self.Asset)
            te = event.GetTaskEnd(self.Asset)
            # datagen = self.datasize

            if (ts > te):
                # Logger.Report("EOSensor lost access")
                return False
            te = ts + timetocapture
            event.SetTaskEnd(self.Asset, te)

            position = self.Asset.AssetDynamicState
            timage = ts + timetocapture / 2
            m_SC_pos_at_tf_ECI = position.PositionECI(timage)
            # m_target_pos_at_tf_ECI = self._task.Target.DynamicState.PositionECI(timage)
            m_pv = -m_SC_pos_at_tf_ECI  # purely azimuth
            pos_norm = -m_SC_pos_at_tf_ECI / Matrix[System.Double].Norm(
                -m_SC_pos_at_tf_ECI)
            pv_norm = m_pv / Matrix[System.Double].Norm(m_pv)
            antincidenceang = Matrix[System.Double](4, 1)
            antincidenceang[1, 1] = 90 - 180 / Math.PI * Math.Acos(
                Matrix[System.Double].Dot(pos_norm, pv_norm))  #X
            antincidenceang[2, 1] = 90 - 180 / Math.PI * Math.Acos(
                Matrix[System.Double].Dot(pos_norm, pv_norm))  #Y
            antincidenceang[3, 1] = 90 - 180 / Math.PI * Math.Acos(
                Matrix[System.Double].Dot(pos_norm, pv_norm))  #Z
            antincidenceang[4, 1] = 90 - 180 / Math.PI * Math.Acos(
                Matrix[System.Double].Dot(pos_norm, pv_norm))  #quat
            #change to vector for rpy values
            E = 2.070 * Math.Pow(10, 11)
            density = 7860
            L = 3
            arc = 1
            r2 = .019127
            r1 = .01900
            I = (arc - Math.Sin(arc)) * (Math.Pow(r2, 4) - Math.Pow(r1, 4)) / 8
            area = (Math.Pow(r2, 2) - Math.Pow(r1, 2)) * (Math.PI)
            volume = area * L
            deltaangle = Math.Acos(Matrix[System.Double].Dot(
                position.PositionECI(te), position.PositionECI(ts))) / (
                    Matrix[System.Double].Norm(position.PositionECI(te)) *
                    Matrix[System.Double].Norm(position.PositionECI(ts)))
            a = deltaangle / (Math.Pow(te - ts, 2))
            M = density * volume
            force = a * M
            finaldeflection = force * Math.Pow(L / 2, 2) * ((5 * (L / 2)) /
                                                            (6 * E * I))
            antstress = (M * L / 2) / I

            #yield stress check for antstress

            self._newState.AddValue(
                self.Antenna_Incidence,
                KeyValuePair[System.Double,
                             Matrix[System.Double]](timage, antincidenceang))
            self._newState.AddValue(
                self.Antenna_Stress,
                KeyValuePair[System.Double, System.Double](timage, antstress))
            #	Set up in init the hsfsystem
            #self._newState.addValue(self.ANT_INCIDENCE_KEY, KeyValuePair[System.Double, System.Double](timage + 1, 0.0))

            #self._newState.addValue(self.ANT_DISPLACEMENT_KEY, KeyValuePair[System.Double, System.Double](timage, finaldeflection))

            #self._newState.addValue(self.ANT_DATA_KEY, KeyValuePair[System.Double, System.Double](timage, data))
            #self._newState.addValue(self.ANT_DATA_KEY, KeyValuePair[System.Double, System.Double](timage + 1, 0.0))

            # self._newState.addValue(self.ANTON_KEY, KeyValuePair[System.Double, System.Boolean](ts, True))
            #self._newState.addValue(self.ANTON_KEY, KeyValuePair[System.Double, System.Boolean](te, False))
            return True