def __init__(self, vehID, initspeed=None, maxaccel=1., DELTAT=0.1):
     self.ID = vehID
     self.speed = None
     self.obstacles = {}
     self.maxAccel = maxaccel
     if initspeed is None:
         self.speedCommand = []
     else:
         self.speedCommand = [initspeed]
     self.DELTAT = DELTAT
     self.egoPredictor = CV_line(None, 'S2N')
     self.predictor = CV_line(None, 'E2W')
Exemplo n.º 2
0
 def __init__(self, vehID, initspeed=None, maxaccel=1., DELTAT=0.1):
     self.ID = vehID
     self.speed = None
     self.obstacles = {}
     self.maxAccel = maxaccel
     if initspeed is None:
         self.speedCommand = []
     else:
         self.speedCommand = [initspeed]
     self.DELTAT = DELTAT
     self.egoPredictor = CV_line(None, 'S2N')
     self.predictor = CV_line(None, 'E2W')
class Inter1ControlSmart:
    speedMode = 6   #only physics checks
    laneChangeMode = 69 # no lane change for speed purposes
    
    def __init__(self, vehID, initspeed=None, maxaccel=1., DELTAT=0.1):
        self.ID = vehID
        self.speed = None
        self.obstacles = {}
        self.maxAccel = maxaccel
        if initspeed is None:
            self.speedCommand = []
        else:
            self.speedCommand = [initspeed]
        self.DELTAT = DELTAT
        self.egoPredictor = CV_line(None, 'S2N')
        self.predictor = CV_line(None, 'E2W')
        
    def updateSpeed(self, speed):
        self.speed = speed
    
    def nextStep(self, vehicles):       
        if len(self.speedCommand)==0:
            self.newSpeedCommand()
           
        mystate = None # first find own information
        for vstate in vehicles:
            if vstate.vehID == self.ID:
                mystate = vstate2df(vstate)
        if mystate is None:
            print "no find self"
            return self.speedCommand.pop()
        mystate.time = 1
        myfuture = self.egoPredictor.predict(mystate, np.arange(0.5,2.1,.1))
        
        for vstate in vehicles: # check each other vehicle for collision
            if vstate.vehID != self.ID:
                otherfuture = self.predictor.predict(vstate2df(vstate),
                                                     np.arange(0.5,2.1,.1))
                for ptime in range(myfuture.shape[0]):
                    myfutureloc = myfuture.iloc[ptime]
                    otherfutureloc = otherfuture.iloc[ptime]
                    #print 'checking'
                    #print str(myfutureloc.x)+", "+str(myfutureloc.y)
                    #print str(otherfutureloc.x)+", "+str(otherfutureloc.y)
                    if collisionCheck.check(myfutureloc, otherfutureloc):
                        print "collision detected in "+str(ptime/10.+.3)+" s"
                        self.speedCommand = ( list(np.arange(20/.447,0,-.1)) +
                                            [0.]*5 +
                                            list(np.arange(0,self.speed,.5)) )
                        self.speedCommand.pop()
                        return self.speedCommand.pop()
        return self.speedCommand.pop()
        
    def newSpeedCommand(self):
        MPH2MS = .447
        chosenSpeed = truncatedNormal(self.speed/MPH2MS, 10, 20, 50)*MPH2MS
        chosenAccel = random.uniform(0,self.maxAccel) * self.DELTAT
        meanTime = 2.0 # seconds
        chosenTime = np.floor(random.expovariate(1/meanTime) / self.DELTAT) + 1
        
        accelPeriod = np.arange(chosenSpeed, self.speed,
                                chosenAccel*np.sign(self.speed-chosenSpeed))
        if chosenTime <= len(accelPeriod):
            self.speedCommand = accelPeriod[-chosenTime:].tolist()
        else:
            steadyPeriod = [chosenSpeed]*(chosenTime-len(accelPeriod))
            self.speedCommand = steadyPeriod + accelPeriod.tolist()
        print "chosen speed " +str(chosenSpeed)
Exemplo n.º 4
0
class Inter1ControlSmart:
    speedMode = 6  #only physics checks
    laneChangeMode = 69  # no lane change for speed purposes

    def __init__(self, vehID, initspeed=None, maxaccel=1., DELTAT=0.1):
        self.ID = vehID
        self.speed = None
        self.obstacles = {}
        self.maxAccel = maxaccel
        if initspeed is None:
            self.speedCommand = []
        else:
            self.speedCommand = [initspeed]
        self.DELTAT = DELTAT
        self.egoPredictor = CV_line(None, 'S2N')
        self.predictor = CV_line(None, 'E2W')

    def updateSpeed(self, speed):
        self.speed = speed

    def nextStep(self, vehicles):
        if len(self.speedCommand) == 0:
            self.newSpeedCommand()

        mystate = None  # first find own information
        for vstate in vehicles:
            if vstate.vehID == self.ID:
                mystate = vstate2df(vstate)
        if mystate is None:
            print "no find self"
            return self.speedCommand.pop()
        mystate.time = 1
        myfuture = self.egoPredictor.predict(mystate, np.arange(0.5, 2.1, .1))

        for vstate in vehicles:  # check each other vehicle for collision
            if vstate.vehID != self.ID:
                otherfuture = self.predictor.predict(vstate2df(vstate),
                                                     np.arange(0.5, 2.1, .1))
                for ptime in range(myfuture.shape[0]):
                    myfutureloc = myfuture.iloc[ptime]
                    otherfutureloc = otherfuture.iloc[ptime]
                    #print 'checking'
                    #print str(myfutureloc.x)+", "+str(myfutureloc.y)
                    #print str(otherfutureloc.x)+", "+str(otherfutureloc.y)
                    if collisionCheck.check(myfutureloc, otherfutureloc):
                        print "collision detected in " + str(ptime / 10. +
                                                             .3) + " s"
                        self.speedCommand = (
                            list(np.arange(20 / .447, 0, -.1)) + [0.] * 5 +
                            list(np.arange(0, self.speed, .5)))
                        self.speedCommand.pop()
                        return self.speedCommand.pop()
        return self.speedCommand.pop()

    def newSpeedCommand(self):
        MPH2MS = .447
        chosenSpeed = truncatedNormal(self.speed / MPH2MS, 10, 20, 50) * MPH2MS
        chosenAccel = random.uniform(0, self.maxAccel) * self.DELTAT
        meanTime = 2.0  # seconds
        chosenTime = np.floor(
            random.expovariate(1 / meanTime) / self.DELTAT) + 1

        accelPeriod = np.arange(
            chosenSpeed, self.speed,
            chosenAccel * np.sign(self.speed - chosenSpeed))
        if chosenTime <= len(accelPeriod):
            self.speedCommand = accelPeriod[-chosenTime:].tolist()
        else:
            steadyPeriod = [chosenSpeed] * (chosenTime - len(accelPeriod))
            self.speedCommand = steadyPeriod + accelPeriod.tolist()
        print "chosen speed " + str(chosenSpeed)