1 | /************************************************************************************ |
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2 | * Copyright (C) 2008 by Politehnica University of Bucharest and Rutgers University |
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3 | * All rights reserved. |
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4 | * Refer to LICENSE for terms and conditions of use. |
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5 | ***********************************************************************************/ |
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6 | package vnsim.applications.adaptiveTL; |
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7 | |
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8 | |
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9 | import java.io.ByteArrayInputStream; |
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10 | import java.io.Serializable; |
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11 | import java.nio.ByteBuffer; |
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12 | import java.util.ArrayList; |
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13 | import java.util.LinkedList; |
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14 | import java.util.TreeMap; |
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15 | |
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16 | import vnsim.applications.trafficview.SimulatedCarInfo; |
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17 | import vnsim.core.*; |
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18 | import vnsim.core.events.ReceiveEvent; |
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19 | import vnsim.core.events.SendEvent; |
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20 | import vnsim.map.object.*; |
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21 | import vnsim.network.RadioDev; |
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22 | import vnsim.vehicular.simulator.intersections.*; |
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23 | |
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24 | public class WirelessTrafficLight |
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25 | extends IntersectionWithTrafficLights implements Communicator{ |
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26 | |
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27 | private static final long serialVersionUID = 8724226247069906455L; |
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28 | |
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29 | public final static byte PROT_RESERVED = 0; |
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30 | |
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31 | public static final double LOW_SPEED = 5.0; // km/h |
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32 | public static final double MAX_QUEUE_GAP = 0.02; // km |
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33 | |
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34 | public ArrayList <IntersectionCarRecord> trafficDB = new ArrayList<IntersectionCarRecord>(); |
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35 | |
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36 | public ArrayList <IntersectionCarRecord> intersectionCars = new ArrayList<IntersectionCarRecord>(); |
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37 | |
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38 | public Integer DBmutex = new Integer(0); |
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39 | |
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40 | // public ArrayList<TrafficLightInfo> newLightInfos; |
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41 | public int newCycleLength; |
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42 | |
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43 | public int phases; |
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44 | |
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45 | int lastMediumTransmission; |
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46 | |
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47 | public LinkedList<ReceiveEvent> receiveEvents = new LinkedList<ReceiveEvent>(); |
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48 | |
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49 | public TreeMap<Integer,Integer> messagePeriods = new TreeMap<Integer,Integer>(); |
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50 | |
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51 | boolean promiscuousMode; |
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52 | |
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53 | public static boolean adaptive = true; |
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54 | // public LinkedList lastHourHistory = new LinkedList(); |
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55 | |
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56 | protected boolean initialized = false; |
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57 | |
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58 | final static int CRTDIR = 0; |
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59 | final static int OPPDIR = 1; |
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60 | |
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61 | private final RadioDev radio = new RadioDev(this); |
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62 | |
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63 | public void init(){ |
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64 | |
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65 | for (int i = 0; i < segments.size(); i++){ |
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66 | DirectedRoadSegment seg = segments.get(i); |
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67 | seg.segmentIndex = i; |
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68 | seg.intersection = this; |
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69 | Road r1 = Globals.map.roads.get(seg.roadIndex); |
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70 | seg.endOfQueue = new IntersectionCarRecord[r1.laneNo + 1];//new ArrayList<IntersectionCarRecord>(r1.laneNo); |
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71 | seg.queueDischargeRate = new double[r1.laneNo+1]; |
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72 | |
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73 | for (int j = 0; j <= r1.laneNo; j++){ |
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74 | seg.endOfQueue[j] = new IntersectionCarRecord(null); |
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75 | seg.queueDischargeRate[j] = -1; |
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76 | } |
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77 | if (seg.isExitOnly()) |
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78 | continue; |
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79 | for (int j = 0; j < segments.size(); j++){ |
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80 | if (i != j && !segments.get(j).isEntryOnly()){ |
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81 | seg.paths.add(new IntersectionPath(this, seg, segments.get(j))); |
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82 | } |
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83 | } |
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84 | |
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85 | Intersection intersection = null; |
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86 | if(seg.direction) { |
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87 | for(int k=0; k < r1.crosses.size();k++) { |
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88 | if(r1.crosses.get(k).getPointIndex() > seg.pointIndex) { |
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89 | //that's the next cross |
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90 | intersection=Globals.map.allIntersections.get(r1.crosses.get(k).intersectionIndex); |
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91 | seg.nextwtlPointIndex = r1.crosses.get(k).getPointIndex(); |
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92 | break; |
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93 | } |
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94 | } |
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95 | } else { |
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96 | for(int k = r1.crosses.size()-1; k >= 0; k--) { |
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97 | if(r1.crosses.get(k).getPointIndex() < seg.pointIndex) { |
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98 | //that's the next cross |
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99 | intersection=Globals.map.allIntersections.get(r1.crosses.get(k).intersectionIndex); |
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100 | seg.nextwtlPointIndex = r1.crosses.get(k).getPointIndex(); |
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101 | break; |
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102 | } |
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103 | } |
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104 | } |
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105 | if (intersection == null){ |
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106 | seg.nextwtl = null; |
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107 | } |
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108 | if (intersection instanceof WirelessTrafficLight){ |
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109 | seg.nextwtl = (WirelessTrafficLight)intersection; |
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110 | } |
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111 | } |
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112 | } |
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113 | |
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114 | |
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115 | public void computeNextSignalPlan(int crtTime){ |
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116 | |
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117 | if (crtTime < 3 * Globals.MINUTE){ |
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118 | newCycleLength = cycleLength; |
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119 | for( int j = 0; j < segments.size(); j++ ) { |
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120 | segments.get(j).setNewLightInfo(segments.get(j).getLightInfo()); |
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121 | } |
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122 | return; |
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123 | } |
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124 | if (adaptive){ |
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125 | int interGreenTime = 0; |
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126 | interGreenTime = Globals.DEFAULT_YELLOW_TIME + Globals.DEFAULT_ALL_RED; |
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127 | |
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128 | int green=30; |
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129 | int time=0, j, lostTime = 0; |
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130 | double Y = 0, ycr = 0; |
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131 | int[] v = new int[segments.size()]; |
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132 | double[] yc = new double[segments.size()]; |
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133 | |
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134 | for( j = 0; j < segments.size(); j++ ) |
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135 | v[j] = 0; |
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136 | |
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137 | // CALCULATE SUM OF CRITICAL FLOW RATIOS |
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138 | if (Globals.map.allIntersections.size() >= 2) |
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139 | if(this.equals(Globals.map.allIntersections.get(1))){ |
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140 | v[0] = 0; |
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141 | } |
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142 | |
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143 | // System.out.println("%%%%%%%%%% The intersections"); |
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144 | // System.out.println(Globals.map.allIntersections.toString()); |
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145 | |
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146 | phases = 0; |
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147 | for( j = 0; j < segments.size(); j++ ) { |
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148 | DirectedRoadSegment seg1 = segments.get(j); |
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149 | if (v[j] == 1) |
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150 | continue; |
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151 | phases ++; |
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152 | if (!seg1.isExitOnly()){ |
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153 | double satflow = Globals.SATURATION_FLOW * seg1.road.laneNo; |
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154 | // if (segments.get(j).road.laneNo > 1) |
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155 | // satflow -= 300; |
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156 | double correction = 0; |
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157 | if (seg1.demand > seg1.totalVolume) |
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158 | correction = (double)(seg1.demand - seg1.totalVolume); |
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159 | yc[j] = (double)(seg1.demand + seg1.carryOver) / satflow; |
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160 | }else{ |
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161 | yc[j] = 0; |
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162 | } |
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163 | v[seg1.segmentIndex] = 1; |
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164 | |
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165 | /*if (Globals.map.roads.get(0).getName().startsWith("Iuliu")){ |
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166 | if (j < 2) |
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167 | seg1.pair = seg1.front; |
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168 | else{ |
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169 | seg1.pair = null; |
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170 | } |
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171 | }else*/{ |
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172 | seg1.pair = seg1.front; |
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173 | if (seg1.front != null) |
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174 | seg1.front.pair = seg1; |
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175 | } |
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176 | |
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177 | DirectedRoadSegment seg2 = seg1.pair; |
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178 | if (seg2 == null){ |
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179 | Y += yc[j]; |
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180 | continue; |
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181 | }else{ |
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182 | if (!seg2.isExitOnly()){ |
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183 | double satflow = Globals.SATURATION_FLOW * seg2.road.laneNo; |
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184 | // if (segments.get(j).road.laneNo > 1) |
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185 | // satflow -= 300; |
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186 | double correction = 0; |
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187 | if (seg2.demand > seg2.totalVolume) |
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188 | correction = (double)(seg2.demand - seg2.totalVolume); |
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189 | yc[seg2.segmentIndex] = (double)(seg2.demand + seg2.carryOver) / satflow; |
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190 | }else{ |
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191 | yc[seg2.segmentIndex] = 0; |
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192 | } |
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193 | } |
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194 | |
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195 | ycr = yc[j]; |
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196 | if (ycr < yc[seg2.segmentIndex]){ |
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197 | ycr = yc[seg2.segmentIndex]; |
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198 | yc[j] = ycr; |
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199 | }else{ |
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200 | yc[seg2.segmentIndex] = ycr; |
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201 | } |
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202 | Y += ycr; |
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203 | v[seg2.segmentIndex] = 1; |
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204 | } |
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205 | |
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206 | // CALCULATE CYCLE LENGTH WITH WEBSTER EQUATION |
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207 | if (Y >= 1){ |
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208 | newCycleLength = Globals.MAXIMUM_CYCLE_LENGTH; |
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209 | }else{ |
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210 | lostTime = (int)Math.ceil((double)segments.size() / 2) * interGreenTime; |
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211 | //Webster's equation |
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212 | newCycleLength = (int)((double)(1.5 * lostTime + 5) / (1 - Globals.Xc * Y)); |
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213 | // newCycleLength = (int)(2.0 * newCycleLength); |
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214 | if (newCycleLength > Globals.MAXIMUM_CYCLE_LENGTH || newCycleLength < 0) |
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215 | newCycleLength = Globals.MAXIMUM_CYCLE_LENGTH; |
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216 | } |
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217 | |
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218 | if (Globals.monitorWTL != null && this.equals(Globals.monitorWTL)){ |
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219 | Globals.pw.print(crtTime/Globals.SECOND + " "); |
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220 | } |
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221 | //COMPUTE GREEN SPLITS |
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222 | |
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223 | // newLightInfos = new ArrayList<TrafficLightInfo>(); |
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224 | double extra = 0, grprop; |
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225 | double maxIncreaseProp = 1; |
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226 | int[] greens = new int[segments.size()]; |
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227 | double[] increaseProp = new double[segments.size()]; |
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228 | int count = 0, sum = 0, dec = 0; |
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229 | |
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230 | for(j=0;j<segments.size();j++) { |
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231 | DirectedRoadSegment seg = segments.get(j); |
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232 | |
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233 | grprop = (double)(newCycleLength - lostTime) * yc[j] / Y; |
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234 | green = (int) Math.ceil(grprop); |
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235 | greens[j] = green; |
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236 | if (greens[j] == 0){ |
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237 | greens[j] = 1; |
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238 | } |
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239 | // System.out.println("Greens [ "+j+" ] " + greens[j]); |
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240 | // get the perpendicular segments with green for pedestrians |
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241 | int maxPedestrianTime = 0; |
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242 | if (seg.left != null && seg.left.pedestrianCrossingTime > maxPedestrianTime){ |
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243 | maxPedestrianTime = (int)seg.left.pedestrianCrossingTime; |
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244 | } |
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245 | if (seg.right != null && seg.right.pedestrianCrossingTime > maxPedestrianTime){ |
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246 | maxPedestrianTime = (int)seg.right.pedestrianCrossingTime; |
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247 | } |
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248 | // compare to minimum accepted green |
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249 | int mingreen = (int)(maxPedestrianTime + (double)Globals.MIN_WALK_LIGHT_TIME/Globals.SECOND); |
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250 | // System.out.println("MaxPedestrianTime [ "+j+" ] " + mingreen); |
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251 | increaseProp[j] = 0; |
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252 | if (green + interGreenTime < mingreen){ |
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253 | increaseProp[j] = (double)(mingreen - interGreenTime) / greens[j]; |
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254 | // System.out.println("Increase [ "+j+" ] " + increaseProp[j]); |
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255 | if (maxIncreaseProp < increaseProp[j]) |
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256 | maxIncreaseProp = increaseProp[j]; |
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257 | } |
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258 | } |
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259 | |
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260 | for( j = 0; j < segments.size(); j++ ) |
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261 | v[j] = 0; |
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262 | |
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263 | for(j=0;j<segments.size();j ++) { |
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264 | DirectedRoadSegment seg1 = segments.get(j); |
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265 | if (v[j] == 1) |
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266 | continue; |
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267 | if (maxIncreaseProp > 0){ |
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268 | greens[j] = (int)Math.round(maxIncreaseProp * greens[j]); |
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269 | } |
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270 | if ( increaseProp[j] == 0){ |
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271 | count ++; |
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272 | } |
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273 | sum += greens[j] + interGreenTime; |
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274 | v[seg1.segmentIndex] = 1; |
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275 | DirectedRoadSegment seg2 = seg1.pair; |
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276 | if (seg2 != null){ |
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277 | if (maxIncreaseProp > 0){ |
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278 | greens[seg2.segmentIndex] = (int)Math.round(maxIncreaseProp * greens[j]); |
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279 | } |
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280 | v[seg2.segmentIndex] = 1; |
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281 | } |
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282 | // System.out.println("NewGreens [ "+j+" ] " + greens[j]); |
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283 | } |
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284 | if (sum > Globals.MAXIMUM_CYCLE_LENGTH){ |
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285 | dec = (int)Math.ceil((double)(sum - Globals.MAXIMUM_CYCLE_LENGTH)/count); |
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286 | } |
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287 | |
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288 | |
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289 | for( j = 0; j < segments.size(); j++ ) |
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290 | v[j] = 0; |
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291 | |
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292 | //SET FINAL TIMING PLANS |
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293 | for( j = 0; j < segments.size(); j++ ) { |
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294 | DirectedRoadSegment seg1 = segments.get(j); |
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295 | if (v[j] == 1) |
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296 | continue; |
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297 | |
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298 | if ( increaseProp[j] == 0 && dec > 0) |
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299 | greens[j] -= dec; |
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300 | if (!seg1.isExitOnly()){ |
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301 | seg1.setNewLightInfo(new TrafficLightInfo(time, time + greens[j])); |
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302 | }else{ |
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303 | seg1.setNewLightInfo(new TrafficLightInfo(time, time)); |
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304 | } |
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305 | v[seg1.segmentIndex] = 1; |
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306 | DirectedRoadSegment seg2 = seg1.pair; |
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307 | if (seg2 != null){ |
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308 | v[seg2.segmentIndex] = 1; |
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309 | greens[seg2.segmentIndex] = greens[j]; |
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310 | if (!seg2.isExitOnly()){ |
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311 | seg2.setNewLightInfo(new TrafficLightInfo(time, time + greens[j])); |
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312 | }else{ |
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313 | seg2.setNewLightInfo(new TrafficLightInfo(time, time)); |
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314 | } |
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315 | } |
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316 | if (Globals.monitorWTL != null && this.equals(Globals.monitorWTL)){ |
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317 | Globals.pw.print(" " +time +" " + (time + greens[j]) +" "); |
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318 | } |
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319 | time = time + greens[j] + interGreenTime; |
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320 | } |
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321 | |
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322 | newCycleLength = time;//Math.ceil(extra); |
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323 | if (Globals.monitorWTL != null && this.equals(Globals.monitorWTL)){ |
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324 | Globals.pw.print(" "+newCycleLength + " s "); |
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325 | Globals.pw.print(" MaxInc " + maxIncreaseProp+"; \n"); |
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326 | Globals.pw.flush(); |
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327 | } |
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328 | }else{ |
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329 | newCycleLength = cycleLength; |
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330 | for( int j = 0; j < segments.size(); j++ ) { |
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331 | segments.get(j).setNewLightInfo(segments.get(j).getLightInfo()); |
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332 | } |
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333 | } |
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334 | } |
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335 | |
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336 | public void extendGreen(int t, int secs, DirectedRoadSegment segment){ |
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337 | Globals.pw.print("Green Extension\t"); |
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338 | |
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339 | TrafficLightInfo tli = segment.getLightInfo(); |
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340 | if (secs > (tli.greenEnd - tli.greenStart)/2) |
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341 | secs = (tli.greenEnd - tli.greenStart)/2; |
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342 | |
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343 | for(int j = 0; j < segments.size(); j++ ) { |
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344 | DirectedRoadSegment seg = segments.get(j); |
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345 | tli = seg.getLightInfo(); |
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346 | if (t < tli.yellowStart) |
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347 | seg.setLightInfo(new TrafficLightInfo(tli.greenStart + secs, tli.greenEnd + secs)); |
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348 | if (seg.equals(segment)) |
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349 | seg.setLightInfo(new TrafficLightInfo(tli.greenStart, tli.greenEnd + secs)); |
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350 | tli = seg.getLightInfo(); |
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351 | Globals.pw.print(" " +tli.greenStart +" " + tli.greenEnd +" "); |
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352 | } |
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353 | cycleLength += secs; |
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354 | Globals.pw.println(" "+cycleLength + " s"); |
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355 | Globals.pw.flush(); |
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356 | } |
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357 | |
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358 | |
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359 | int changeTime = -1; |
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360 | public void step(int crtTime){ |
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361 | if (!initialized){ |
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362 | initialized = true; |
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363 | init(); |
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364 | } |
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365 | |
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366 | //recommend speeds to cars |
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367 | // scheduleSingleSendEvent(1, Globals.PROT_TL_FEEDBACK); |
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368 | |
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369 | if (crtTime % (10 * Globals.SECOND) == 0){ |
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370 | for (int k = 0; k < this.segments.size(); k++) { |
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371 | DirectedRoadSegment seg = segments.get(k); |
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372 | seg.recordQueueSize(); |
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373 | } |
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374 | /*//broadcast feedback |
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375 | if (Engine.simulationType == RoutingConstants.DYNAMIC_CITY_ROUTE) { |
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376 | scheduleSingleSendEvent(0, Globals.PROT_TL_FEEDBACK); |
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377 | }*/ |
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378 | } |
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379 | // compute the next cycle signal plan with 2 seconds before switching |
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380 | if (crtTime == lastCycleStartTime + cycleLength * Globals.SECOND - 2 * Globals.SECOND){ |
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381 | |
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382 | if (Globals.monitorWTL != null && this.equals(Globals.monitorWTL)){ |
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383 | Globals.pw.println("\n"+crtTime/Globals.SECOND + "s ) WTL"); |
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384 | } |
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385 | int dem = 0, vol = 0; |
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386 | double stops = 0; |
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387 | for (int k = 0; k < this.segments.size(); k++) { |
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388 | DirectedRoadSegment seg = segments.get(k); |
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389 | |
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390 | dem = seg.computeDemand(Globals.ANALYSIS_PERIOD); |
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391 | vol = seg.computeVolume(Globals.ANALYSIS_PERIOD); |
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392 | stops = seg.noOfStops; |
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393 | int analysisPeriod = Globals.ANALYSIS_PERIOD; |
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394 | if (Globals.ANALYSIS_PERIOD < crtTime){ |
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395 | analysisPeriod = crtTime; |
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396 | } |
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397 | // if (dem > vol){ |
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398 | seg.carryOver += (int)((double)(dem - vol) * (double)(cycleLength * Globals.SECOND) / analysisPeriod); |
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399 | if (seg.carryOver < 0) |
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400 | seg.carryOver = 0; |
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401 | // }else{ |
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402 | // seg.carryOver -= (int)((double)(dem - vol) * (double)(cycleLength * Globals.SECOND) / analysisPeriod); |
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403 | // } |
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404 | |
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405 | Point px = seg.road.points.get(seg.pointIndex); |
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406 | double qs = seg.get95thQueueSize(); |
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407 | if (Globals.monitorWTL != null && this.equals(Globals.monitorWTL)){ |
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408 | Globals.pw.println(" "+ seg.segmentIndex + "" + |
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409 | " dem: "+seg.demand + " carry: "+seg.carryOver+" vol: " + seg.totalVolume + " stops: " + seg.noOfStops + " avgQueue: " + qs ); |
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410 | Globals.pw.flush(); |
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411 | } |
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412 | |
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413 | if (Globals.engine.startedWithGUI && Globals.demo.mv.currentIntersection != null && |
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414 | Globals.demo.mv.currentIntersection.equals(this)){ |
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415 | |
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416 | /*if (segments.get(2).road.getName().startsWith("Iuliu")){ |
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417 | if (k == 0) |
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418 | Globals.demo.st.setDemand("sw", vol, dem, true); |
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419 | if (k == 2) |
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420 | Globals.demo.st.setDemand("se", vol, dem, true); |
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421 | if (k == 1) |
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422 | Globals.demo.st.setDemand("ne", vol, dem, true); |
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423 | if (k == 3) |
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424 | Globals.demo.st.setDemand("nw", vol, dem, true); |
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425 | } |
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426 | if (segments.get(1).road.getName().startsWith("Dr T")){ |
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427 | if (k == 0) |
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428 | Globals.demo.st.setDemand("sw", vol, dem, true); |
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429 | if (k == 2) |
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430 | Globals.demo.st.setDemand("se", vol, dem, true); |
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431 | if (k == 1) |
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432 | Globals.demo.st.setDemand("ne", vol, dem, true); |
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433 | if (k == 3) |
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434 | Globals.demo.st.setDemand("nw", vol, dem, true); |
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435 | }*/ |
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436 | } |
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437 | |
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438 | } |
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439 | |
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440 | computeNextSignalPlan(crtTime); |
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441 | } |
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442 | |
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443 | boolean debug = false; |
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444 | if (crtTime == lastCycleStartTime + cycleLength * Globals.SECOND){ |
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445 | debug = true; |
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446 | lastCycleStartTime = crtTime; |
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447 | cycleLength = newCycleLength; |
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448 | for( int j = 0; j < segments.size(); j++ ) { |
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449 | segments.get(j).setLightInfo(segments.get(j).getNewLightInfo()); |
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450 | } |
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451 | } |
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452 | int thisSec = (int) (crtTime / (Globals.executionFPS)); |
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453 | int aux = thisSec - (lastCycleStartTime / Globals.SECOND); |
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454 | |
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455 | synchronized (this) { |
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456 | boolean b = false; |
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457 | if (Globals.engine.startedWithGUI && Globals.demo.mv.currentIntersection != null && |
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458 | Globals.demo.mv.currentIntersection.equals(this)){ |
---|
459 | Globals.demo.st.cycle.setText("Cycle: " + cycleLength + " s"); |
---|
460 | |
---|
461 | } |
---|
462 | for (int k = 0; k < this.segments.size(); k++) { |
---|
463 | TrafficLightInfo info = segments.get(k).getLightInfo(); |
---|
464 | int color = info.getColor(aux); |
---|
465 | if (color != currentColor.get(k) ){ |
---|
466 | currentColor.set(k, color); |
---|
467 | int dem = 0, vol = 0; |
---|
468 | double stops = 0; |
---|
469 | if (segments.get(k).pair != null |
---|
470 | && segments.get(k).pair.getLightInfo().getColor(aux-1) == Globals.GREEN |
---|
471 | && adaptive){ |
---|
472 | int i = segments.get(k).paths.indexOf(new IntersectionPath(segments.get(k), segments.get(k).pair)); |
---|
473 | if (i!= -1 && color == Globals.YELLOW){ |
---|
474 | int secsEx = segments.get(k).leftSignalExtension(); |
---|
475 | if (secsEx > 0){ |
---|
476 | System.out.println("Extension"); |
---|
477 | extendGreen(aux, secsEx, segments.get(k)); |
---|
478 | continue; |
---|
479 | } |
---|
480 | } |
---|
481 | } |
---|
482 | segments.get(k).changePhase(null,crtTime, color); |
---|
483 | if (!segments.get(k).isExitOnly()){ |
---|
484 | DirectedRoadSegment seg = segments.get(k); |
---|
485 | |
---|
486 | dem = seg.computeDemand(Globals.ANALYSIS_PERIOD); |
---|
487 | vol = seg.computeVolume(Globals.ANALYSIS_PERIOD); |
---|
488 | stops = seg.noOfStops; |
---|
489 | |
---|
490 | } |
---|
491 | |
---|
492 | b = true; |
---|
493 | if (segments.get(k).pair != null){ |
---|
494 | int i = segments.get(k).paths.indexOf(new IntersectionPath(segments.get(k), segments.get(k).pair)); |
---|
495 | if (i!= -1 && color == Globals.YELLOW){ |
---|
496 | IntersectionPhaseStatistics ips= segments.get(k).paths.get(i).getLastGreenPhase(); |
---|
497 | |
---|
498 | // if (ips!= null) |
---|
499 | // System.out.println(crtTime + ") gap ["+segments.get(k)+" "+segments.get(k).front+"] "+ ips.avgGap); |
---|
500 | |
---|
501 | } |
---|
502 | } |
---|
503 | if (Globals.engine.startedWithGUI && Globals.demo.mv.currentIntersection != null && |
---|
504 | Globals.demo.mv.currentIntersection.equals(this)){ |
---|
505 | /*if (segments.get(2).road.getName().startsWith("Iuliu")){ |
---|
506 | if (k == 0) |
---|
507 | Globals.demo.st.setDemand("sw", vol, dem, true); |
---|
508 | if (k == 2) |
---|
509 | Globals.demo.st.setDemand("se", vol, dem, true); |
---|
510 | if (k == 1) |
---|
511 | Globals.demo.st.setDemand("ne", vol, dem, true); |
---|
512 | if (k == 3) |
---|
513 | Globals.demo.st.setDemand("nw", vol, dem, true); |
---|
514 | } |
---|
515 | if (segments.get(0).road.getName().startsWith("Dr T")){ |
---|
516 | if (k == 0) |
---|
517 | Globals.demo.st.setDemand("sw", vol, dem, true); |
---|
518 | if (k == 2) |
---|
519 | Globals.demo.st.setDemand("se", vol, dem, true); |
---|
520 | if (k == 1) |
---|
521 | Globals.demo.st.setDemand("ne", vol, dem, true); |
---|
522 | if (k == 3) |
---|
523 | Globals.demo.st.setDemand("nw", vol, dem, true); |
---|
524 | }*/ |
---|
525 | } |
---|
526 | } |
---|
527 | |
---|
528 | |
---|
529 | |
---|
530 | if (Globals.engine.startedWithGUI && Globals.demo.mv.currentIntersection != null && |
---|
531 | Globals.demo.mv.currentIntersection.equals(this)){ |
---|
532 | int x; |
---|
533 | x = info.greenEnd - aux; |
---|
534 | if (x < 0) |
---|
535 | x = 0; |
---|
536 | if (aux < info.greenStart) |
---|
537 | x = info.greenEnd - info.greenStart; |
---|
538 | // |
---|
539 | // if (segments.get(2).road.getName().startsWith("Iuliu")){ |
---|
540 | // if (k == 0) |
---|
541 | // Globals.demo.st.phase2.setText("Green sw: " + x +" s"); |
---|
542 | // if (k == 2) |
---|
543 | // Globals.demo.st.phase1.setText("Green se: " + x +" s"); |
---|
544 | // if (k == 1) |
---|
545 | // Globals.demo.st.phase3.setText("Green ne: " + x +" s"); |
---|
546 | // if (k == 3) |
---|
547 | // Globals.demo.st.phase4.setText("Green nw: " + x +" s"); |
---|
548 | // } |
---|
549 | // if (segments.get(0).road.getName().startsWith("Dr T")){ |
---|
550 | // if (k == 0) |
---|
551 | // Globals.demo.st.phase2.setText("Green sw: " + x +" s"); |
---|
552 | // if (k == 2) |
---|
553 | // Globals.demo.st.phase1.setText("Green se: " + x +" s"); |
---|
554 | // if (k == 1) |
---|
555 | // Globals.demo.st.phase3.setText("Green ne: " + x +" s"); |
---|
556 | // } |
---|
557 | } |
---|
558 | |
---|
559 | } |
---|
560 | |
---|
561 | if (b){ |
---|
562 | changeTime = crtTime; |
---|
563 | } |
---|
564 | if (debug){ |
---|
565 | |
---|
566 | } |
---|
567 | if (Globals.engine.startedWithGUI && Globals.demo.mv.currentIntersection != null && |
---|
568 | Globals.demo.mv.currentIntersection.equals(this)){ |
---|
569 | Globals.demo.st.repaint(); |
---|
570 | |
---|
571 | } |
---|
572 | |
---|
573 | //debug |
---|
574 | /* if (Globals.demo.mv.currentIntersection != null && |
---|
575 | Globals.demo.mv.currentIntersection.equals(this) && |
---|
576 | changeTime != -1 && crtTime == changeTime + 200){ |
---|
577 | prevSec = (int) ((changeTime - 11) / (Globals.executionFPS)); |
---|
578 | aux = prevSec % this.totalTime; |
---|
579 | for (int k = 0; k < this.segments.size(); k++) { |
---|
580 | if (!segments.get(k).isExitOnly()){ |
---|
581 | |
---|
582 | TrafficLightInfo info = this.lightInfos.get(k); |
---|
583 | Road r = Globals.map.roads.get(segments.get(k).roadIndex); |
---|
584 | int l = segments.get(k).pointIndex; |
---|
585 | if (segments.get(k).direction) |
---|
586 | l++; |
---|
587 | else |
---|
588 | l--; |
---|
589 | |
---|
590 | if (info.getColor(aux) == 1) System.out.print("Red "); |
---|
591 | if (info.getColor(aux) == 2) System.out.print("Yellow "); |
---|
592 | if (info.getColor(aux) == 3) System.out.print("Green "); |
---|
593 | |
---|
594 | int n = 0; |
---|
595 | for (int i=0; i < segments.get(k).paths.size();i++){ |
---|
596 | IntersectionPath ip = segments.get(k).paths.get(i); |
---|
597 | |
---|
598 | IntersectionPhaseStatistics ips = ip.lastHourHistory.getLast(); |
---|
599 | |
---|
600 | if (changeTime <= ips.phaseStartFrame ){ |
---|
601 | ips = ip.lastHourHistory.get(ip.lastHourHistory.size() - 2); |
---|
602 | } |
---|
603 | n += ips.getCarsNo(); |
---|
604 | } |
---|
605 | |
---|
606 | Road road = Globals.map.roads.get(segments.get(k).roadIndex); |
---|
607 | Point p0 = road.points.get(segments.get(k).pointIndex); |
---|
608 | if (segments.get(k).cars != null) |
---|
609 | for (int i = 1; i < segments.get(k).cars.size(); i ++){ |
---|
610 | SimulatedCarInfo sc1 = segments.get(k).cars.get(i-1).car; |
---|
611 | SimulatedCarInfo sc2 = segments.get(k).cars.get(i-1).car; |
---|
612 | Point p1 = road.points.get(sc1.getPointIdx()); |
---|
613 | Point p2 = road.points.get(sc2.getPointIdx()); |
---|
614 | if (Math.pow(p1.getDistance() - p0.getDistance(),2) |
---|
615 | > Math.pow(p2.getDistance() - p0.getDistance(),2)) |
---|
616 | throw new RuntimeException(); |
---|
617 | |
---|
618 | } |
---|
619 | |
---|
620 | System.out.println(segments.get(k).roadIndex+"; "+r.getName() + " [" + l +"] : " + n); |
---|
621 | } |
---|
622 | } |
---|
623 | System.out.println(" --------- /"+ crtTime); |
---|
624 | System.out.flush(); |
---|
625 | }*/ |
---|
626 | } |
---|
627 | |
---|
628 | } |
---|
629 | |
---|
630 | public void onReceive(byte[] bytesReceived, Serializable message, Communicator sender) { |
---|
631 | int j, k = 0; |
---|
632 | ByteArrayInputStream byteStream = new ByteArrayInputStream(bytesReceived); |
---|
633 | byte numberOfRecords, recordsRead = 0; |
---|
634 | byte[] b = new byte[Globals.NONAGG_RECORD_SIZE]; |
---|
635 | int offset; |
---|
636 | |
---|
637 | byte protocol = (byte)byteStream.read(); |
---|
638 | switch (protocol){ |
---|
639 | case Globals.PROT_NEIGHBOR_DISCOVERY: |
---|
640 | numberOfRecords = 1; |
---|
641 | break; |
---|
642 | case Globals.PROT_SETOFCARS: |
---|
643 | numberOfRecords = (byte)byteStream.read(); |
---|
644 | break; |
---|
645 | default: |
---|
646 | return; |
---|
647 | } |
---|
648 | if (numberOfRecords == -1) |
---|
649 | return; |
---|
650 | |
---|
651 | int comState = (byte)byteStream.read(); |
---|
652 | |
---|
653 | |
---|
654 | DirectedRoadSegment messageSegment = null; |
---|
655 | boolean sendToNeighborWTL = false; |
---|
656 | |
---|
657 | offset = 2; |
---|
658 | while (recordsRead < numberOfRecords){ |
---|
659 | |
---|
660 | int n = byteStream.read(b, 0, Globals.NONAGG_RECORD_SIZE); |
---|
661 | if (n == -1 || n < Globals.NONAGG_RECORD_SIZE){ |
---|
662 | break; |
---|
663 | } |
---|
664 | offset += Globals.NONAGG_RECORD_SIZE; |
---|
665 | recordsRead ++; |
---|
666 | |
---|
667 | SimulatedCarInfo sc = new SimulatedCarInfo(); |
---|
668 | sc.wrap(b); |
---|
669 | |
---|
670 | Engine e = Globals.engine; |
---|
671 | |
---|
672 | if (Globals.engine.startedWithGUI && Globals.demo.mv.currentIntersection != null && |
---|
673 | Globals.demo.mv.currentIntersection.equals(this)){ |
---|
674 | j = 0; |
---|
675 | } |
---|
676 | IntersectionCarRecord icr = new IntersectionCarRecord(sc); |
---|
677 | |
---|
678 | int i = trafficDB.indexOf(icr); |
---|
679 | |
---|
680 | // update car |
---|
681 | if (i != -1){ |
---|
682 | IntersectionCarRecord old = trafficDB.get(i); |
---|
683 | DirectedRoadSegment oldseg = null; |
---|
684 | DirectedRoadSegment seg = null; |
---|
685 | |
---|
686 | if (old.getCar().getTimestamp() >= sc.getTimestamp() ) |
---|
687 | continue; |
---|
688 | if (!(sender instanceof WirelessTrafficLight)){ |
---|
689 | old.learnedFromWTL = false; |
---|
690 | } |
---|
691 | |
---|
692 | if (old.isPassed()){ |
---|
693 | if (recordsRead == 1 && comState == CRTDIR){ |
---|
694 | for (j=0; j<segments.size();j++){ |
---|
695 | seg = segments.get(j); |
---|
696 | if (seg.containsCar(icr)){ |
---|
697 | messageSegment = seg; |
---|
698 | sendToNeighborWTL = true; |
---|
699 | break; |
---|
700 | } |
---|
701 | } |
---|
702 | } |
---|
703 | continue; |
---|
704 | } |
---|
705 | |
---|
706 | for (j=0; j<segments.size();j++){ |
---|
707 | seg = segments.get(j); |
---|
708 | |
---|
709 | |
---|
710 | if (seg.containsCar(icr) || seg.carEntersIntersection(icr) || seg.carExitsIntersection(icr)){ |
---|
711 | |
---|
712 | synchronized(DBmutex){ |
---|
713 | // if the old record was on the same segment |
---|
714 | oldseg = old.segment; |
---|
715 | if (oldseg.cars != null){ |
---|
716 | oldseg.cars.remove(old); |
---|
717 | } |
---|
718 | |
---|
719 | icr = new IntersectionCarRecord(old, true); |
---|
720 | icr.car = sc; |
---|
721 | |
---|
722 | if (seg.cars == null) |
---|
723 | seg.cars = new SortedIntersectionRecordList(seg); |
---|
724 | |
---|
725 | if (seg.carEntersIntersection(icr) || seg.carExitsIntersection(icr)){ |
---|
726 | if (intersectionCars.indexOf(icr) == -1){ |
---|
727 | int lane = old.getCar().getLane(); |
---|
728 | if (oldseg.endOfQueue[lane].getCar() != null && oldseg.endOfQueue[lane].equals(icr)) |
---|
729 | oldseg.endOfQueue[lane] = new IntersectionCarRecord(null); |
---|
730 | icr.old = old; |
---|
731 | intersectionCars.add(icr); |
---|
732 | } |
---|
733 | // seg.cars.add(icr); |
---|
734 | trafficDB.set(i,icr); |
---|
735 | }else |
---|
736 | if (seg.isCarApproaching(icr)){ |
---|
737 | seg.cars.add(icr); |
---|
738 | icr.setPassed(false); |
---|
739 | |
---|
740 | trafficDB.set(i,icr); |
---|
741 | if (seg.endOfQueue[old.getCar().getLane()].getCar() != null && |
---|
742 | seg.endOfQueue[old.getCar().getLane()].equals(old)){ |
---|
743 | if (old.getCar().getLane() != icr.getCar().getLane()){ |
---|
744 | seg.computeEndOfQueue(old); |
---|
745 | } |
---|
746 | } |
---|
747 | if (seg.isCarQueuing(icr)){ |
---|
748 | if (icr.getQueuedTime() == -1) |
---|
749 | icr.setQueuedTime(e.crtTime); |
---|
750 | if (!icr.countedForDemand){ |
---|
751 | icr.increaseDemand(); |
---|
752 | } |
---|
753 | }else{ |
---|
754 | if (!icr.countedForDemand |
---|
755 | && icr.distanceTillIntersection() < Globals.DEMAND_DISTANCE_ON_FREE_FLOW){ |
---|
756 | |
---|
757 | icr.increaseDemand(); |
---|
758 | } |
---|
759 | } |
---|
760 | // if (recordsRead == 1 && comState == OPPDIR){ |
---|
761 | // //first car |
---|
762 | // messageSegment = seg; |
---|
763 | // sendToNeighborWTL = true; |
---|
764 | // } |
---|
765 | }else{ |
---|
766 | // the car has just passed through the intersection |
---|
767 | int z = intersectionCars.indexOf(icr); |
---|
768 | if (z!= -1){ |
---|
769 | intersectionCars.remove(icr); |
---|
770 | old = icr.old; |
---|
771 | } |
---|
772 | if (oldseg != null){ |
---|
773 | oldseg.recordCar(old, seg); |
---|
774 | int lane = old.getCar().getLane(); |
---|
775 | if(z == -1) |
---|
776 | if (oldseg.endOfQueue[lane].getCar() != null && oldseg.endOfQueue[lane].equals(icr)) |
---|
777 | oldseg.endOfQueue[lane] = new IntersectionCarRecord(null); |
---|
778 | |
---|
779 | }else{ |
---|
780 | System.out.println("[DEBUG - WTL] Car passed but oldseg = null"); |
---|
781 | } |
---|
782 | if (recordsRead == 1 && comState == CRTDIR){ |
---|
783 | //first car |
---|
784 | if (Globals.map.allIntersections.size()>=2 && Globals.map.allIntersections.get(1).equals(this)){ |
---|
785 | messageSegment = seg; |
---|
786 | |
---|
787 | } |
---|
788 | |
---|
789 | messageSegment = seg; |
---|
790 | sendToNeighborWTL = true; |
---|
791 | } |
---|
792 | icr.setPassed(true); |
---|
793 | trafficDB.set(i,icr); |
---|
794 | } |
---|
795 | |
---|
796 | } |
---|
797 | break; |
---|
798 | } |
---|
799 | |
---|
800 | } |
---|
801 | |
---|
802 | if (j == segments.size()){ |
---|
803 | System.out.println("WTL" + this.toString() + ": car not on my segments: " +sc); |
---|
804 | synchronized(DBmutex){ |
---|
805 | trafficDB.remove(i); |
---|
806 | } |
---|
807 | return; |
---|
808 | } |
---|
809 | |
---|
810 | } |
---|
811 | // new car |
---|
812 | else{ |
---|
813 | DirectedRoadSegment seg = null; |
---|
814 | for (j=0; j<segments.size();j++){ |
---|
815 | seg = segments.get(j); |
---|
816 | if (seg.containsCar(icr)){ |
---|
817 | |
---|
818 | if (seg.isCarApproaching(icr)){ |
---|
819 | synchronized(DBmutex){ |
---|
820 | if (seg.cars == null){ |
---|
821 | seg.cars = new SortedIntersectionRecordList(seg); |
---|
822 | } |
---|
823 | seg.cars.add(icr); |
---|
824 | trafficDB.add(icr); |
---|
825 | |
---|
826 | if (sender instanceof WirelessTrafficLight) |
---|
827 | icr.init(this, seg, true); |
---|
828 | else |
---|
829 | icr.init(this, seg, false); |
---|
830 | if (seg.get95thQueueSize() > 0.15){ |
---|
831 | icr.increaseDemand(); |
---|
832 | } |
---|
833 | } |
---|
834 | // if (recordsRead == 1 && comState == OPPDIR){ |
---|
835 | // //first car |
---|
836 | // messageSegment = seg; |
---|
837 | // sendToNeighborWTL = true; |
---|
838 | // } |
---|
839 | }else{ |
---|
840 | if (recordsRead == 1 && comState == CRTDIR){ |
---|
841 | messageSegment = seg; |
---|
842 | sendToNeighborWTL = true; |
---|
843 | } |
---|
844 | } |
---|
845 | break; |
---|
846 | } |
---|
847 | } |
---|
848 | } |
---|
849 | } |
---|
850 | // Got stack overflow when 2 traffic lights at the end of a segment |
---|
851 | // route are sending messages to each other |
---|
852 | //if (sendToNeighborWTL && messageSegment.nextwtl != null){ |
---|
853 | // messageSegment.nextwtl.onReceive(bytesReceived, this); |
---|
854 | //} |
---|
855 | } |
---|
856 | |
---|
857 | public byte[] prepareMessage(int messageType) { |
---|
858 | byte[] bytesToSend = null; |
---|
859 | |
---|
860 | if (messageType == Globals.PROT_TL_FEEDBACK){ |
---|
861 | ByteBuffer bb = ByteBuffer.allocate(Globals.TL_FEEDBACK_SIZE); |
---|
862 | bb.put(Globals.PROT_TL_FEEDBACK); |
---|
863 | |
---|
864 | bb.putShort((short)cycleLength); |
---|
865 | int thisSec = (int) (Globals.engine.crtTime / (Globals.SECOND)); |
---|
866 | int aux = thisSec - (lastCycleStartTime / Globals.SECOND); |
---|
867 | bb.put((byte)segments.size()); |
---|
868 | for (int k = 0; k < this.segments.size(); k++) { |
---|
869 | Road rx = Globals.map.roads.get(segments.get(k).roadIndex); |
---|
870 | Point px = rx.points.get(segments.get(k).pointIndex); |
---|
871 | bb.putShort((short)segments.get(k).roadIndex); |
---|
872 | bb.putShort((short)segments.get(k).pointIndex); |
---|
873 | if (segments.get(k).direction == true) |
---|
874 | bb.put((byte)1); |
---|
875 | else |
---|
876 | bb.put((byte)0); |
---|
877 | |
---|
878 | TrafficLightInfo info = segments.get(k).getLightInfo(); |
---|
879 | int color = info.getColor(aux); |
---|
880 | bb.put((byte)color); |
---|
881 | int remaining = -1; |
---|
882 | if (color == Globals.GREEN){ |
---|
883 | remaining = info.greenEnd - aux; |
---|
884 | } |
---|
885 | if (color == Globals.RED){ |
---|
886 | if (aux < info.greenStart) |
---|
887 | remaining = info.greenStart - aux; |
---|
888 | else{ |
---|
889 | remaining = info.greenStart + (cycleLength - aux); |
---|
890 | // remaining = - remaining; |
---|
891 | } |
---|
892 | } |
---|
893 | bb.putShort((short)remaining); |
---|
894 | bb.putShort((short)(cycleLength - (info.greenEnd - info.greenStart))); |
---|
895 | |
---|
896 | for (int i = 1; i < segments.get(k).endOfQueue.length;i++){ |
---|
897 | IntersectionCarRecord icr = segments.get(k).endOfQueue[i]; |
---|
898 | if (icr.car == null){ |
---|
899 | bb.putDouble(0); |
---|
900 | }else{ |
---|
901 | Road r = Globals.map.roads.get(icr.car.getRoadIdx()); |
---|
902 | Point p = r.points.get(icr.car.getPointIdx()); |
---|
903 | double distance = p.getDistance() - px.getDistance(); |
---|
904 | if (distance < 0) |
---|
905 | distance = - distance; |
---|
906 | bb.putDouble(distance); |
---|
907 | } |
---|
908 | } |
---|
909 | } |
---|
910 | bytesToSend = bb.array(); |
---|
911 | } |
---|
912 | return bytesToSend; |
---|
913 | } |
---|
914 | |
---|
915 | public int getLastMediumTransmition() { |
---|
916 | return lastMediumTransmission; |
---|
917 | } |
---|
918 | public void setLastMediumTransmition(int lastMediumTransmission) { |
---|
919 | this.lastMediumTransmission = lastMediumTransmission; |
---|
920 | } |
---|
921 | |
---|
922 | public boolean mediumAvailable(int crtTime){ |
---|
923 | int fps = Globals.engine.fps; |
---|
924 | if (crtTime - lastMediumTransmission >= Globals.WIRELESS_TRANSMISSION_FRAMES) |
---|
925 | return true; |
---|
926 | return false; |
---|
927 | } |
---|
928 | |
---|
929 | public boolean isPeriodicalMessage(int messageType){ |
---|
930 | return (messageType >= 0); |
---|
931 | } |
---|
932 | |
---|
933 | public int getPeriod(int messageType){ |
---|
934 | try{ |
---|
935 | return messagePeriods.get(new Integer(messageType)).intValue(); |
---|
936 | }catch(Exception e){ |
---|
937 | return -1; |
---|
938 | } |
---|
939 | } |
---|
940 | |
---|
941 | public boolean isPromiscuousMode() { |
---|
942 | return promiscuousMode; |
---|
943 | } |
---|
944 | public void setPromiscuousMode(boolean promiscuousMode) { |
---|
945 | this.promiscuousMode = promiscuousMode; |
---|
946 | } |
---|
947 | |
---|
948 | /** |
---|
949 | * delay of the new event (in frames) |
---|
950 | * @return the identifier of the new message type |
---|
951 | */ |
---|
952 | public int scheduleSingleSendEvent(int delay, int messageType){ |
---|
953 | Engine engine = Globals.engine; |
---|
954 | int newType = PROT_RESERVED; |
---|
955 | if (messageType != -1) |
---|
956 | newType = Globals.PROT_TL_FEEDBACK; |
---|
957 | |
---|
958 | // if (singleMessageNo < MIN_NEG_INT) singleMessageNo = -1; |
---|
959 | |
---|
960 | engine.schedEvent(new SendEvent(engine.crtTime + delay, this, newType)); |
---|
961 | return newType; |
---|
962 | } |
---|
963 | |
---|
964 | @Override |
---|
965 | public String toString() { |
---|
966 | String s = "[ "; |
---|
967 | for (int i = 0; i < segments.size(); i++){ |
---|
968 | if (i > 0 && segments.get(i-1).road.getName().equals(segments.get(i).road.getName())){ |
---|
969 | continue; |
---|
970 | } |
---|
971 | s += segments.get(i).road.getName().trim()+" "; |
---|
972 | } |
---|
973 | s += "]"; |
---|
974 | return s; |
---|
975 | } |
---|
976 | |
---|
977 | public short getRoadIdx(){ |
---|
978 | return (short)segments.get(0).roadIndex; |
---|
979 | } |
---|
980 | |
---|
981 | public short getPointIdx(){ |
---|
982 | return (short)segments.get(0).pointIndex; |
---|
983 | } |
---|
984 | |
---|
985 | public RadioDev getRadio(){ |
---|
986 | return radio; |
---|
987 | } |
---|
988 | |
---|
989 | public ReceiveEvent getReceiveEventForTime(int t){ |
---|
990 | int i = receiveEvents.indexOf(new ReceiveEvent(t, null, null, null, 0)); |
---|
991 | if (i == -1) |
---|
992 | return null; |
---|
993 | return receiveEvents.get(i); |
---|
994 | } |
---|
995 | |
---|
996 | public void addReceiveEventForTime(ReceiveEvent re){ |
---|
997 | receiveEvents.add(re); |
---|
998 | } |
---|
999 | public void removeReceiveEventForTime(int t){ |
---|
1000 | int i = receiveEvents.indexOf(new ReceiveEvent(t, null, null, null, 0)); |
---|
1001 | if (i == -1) |
---|
1002 | return; |
---|
1003 | receiveEvents.remove(i); |
---|
1004 | } |
---|
1005 | |
---|
1006 | } |
---|