CODEWITHSUNDEEP
routesomnet++veinssumo
Md Abu Sayed
Md Abu Sayed

Reputation: 37

How to use change “changeVehicleRoute” function using Veins, SUMO and Omnet++?

I am using a simple network to change route of the following vehicles. My code is not showing any errors . Both SUMO and omnet++ working properly; however, the vehicles are not changing the route. I have tried it with the given demo network of veins but still not working. I have tried several methods that I found in different source so far (that you can see in the actual code as i left them in comments), but still not any of the vehicle is changing route. enter image description here

My rou.xml is : 

<vehicle id="0" depart="5.00">
    <route edges="-gneE4 -gneE3 -gneE2 "/>
</vehicle>
<vehicle id="1" depart="5.00">
    <route edges="-gneE4 -gneE3 -gneE2 "/>
</vehicle>

<vehicle id="2" depart="5.90">
    <route edges="-gneE4 -gneE3 -gneE2 "/>
</vehicle>
 <vehicle id="3" depart="6.0">
    <route edges="-gneE4 -gneE3 -gneE2 "/>
</vehicle>

<vehicle id="4" depart="7.0">
    <route edges="gneE2 gneE3 gneE4"/>
</vehicle>

<vehicle id="5" depart="40.0">
<route edges="-gneE4 -gneE3 -gneE2 "/>

</vehicle>

and change route is chnage route in TraCIDemo11p.cc....

void TraCIDemo11p::onWSM(BaseFrame1609_4* frame){
TraCIDemo11pMessage* wsm = check_and_cast<TraCIDemo11pMessage*>(frame);

findHost()->getDisplayString().setTagArg("i", 1, "green");

//traciVehicle->changeVehicleRoute({"-gneE11","-gneE11"});
// mobility = TraCIMobilityAccess().get(getParentModule());
// traci = mobility->getCommandInterface();
//traciVehicle = mobility->getVehicleCommandInterface();
// traciVehicle->changeRoute("-gneE11", 6);

if (mobility->getRoadId()[0] != ':'){traciVehicle->changeRoute("-gneE11", 3600);}

if (!sentMessage) {
    sentMessage = true;
    // repeat the received traffic update once in 2 seconds plus some random delay
    wsm->setSenderAddress(myId);
    wsm->setSerial(3);
    scheduleAt(simTime() + 2 + uniform(0.01, 0.2), wsm->dup());
}

}

Upvotes: 0

Views: 531

Answers (1)

Christoph Sommer
Christoph Sommer

Reputation: 6943

If you are curious to see what the various SUMO methods do, I would advise you look directly into the source code, e.g., https://github.com/sommer/veins/blob/veins-5.1/src/veins/modules/mobility/traci/TraCICommandInterface.cc#L313. You will see that, what your code does, is to change the routing of a car to assume an effort of 3600 (1 hour, that is, a lot of effort) for edge -gneE11. This edge is not part of any of your vehicles' routes, so none of your vehicle cares: the routes they intended to take are still "perfectly fine".

For alternatives, see also the methods of https://github.com/sommer/veins/blob/veins-5.1/subprojects/veins_testsims/src/veins_testsims/traci/TraCITestApp.cc which call all SUMO methods implemented in Veins 5.1 once to see if they behave as intended. For example, https://github.com/sommer/veins/blob/veins-5.1/subprojects/veins_testsims/src/veins_testsims/traci/TraCITestApp.cc#L285 changes (for one vehicle) the assumed effort of edge 42 to 9999, then (later) checks if the vehicle indeed avoided taking that edge.

Judging by your commented-out code, the code in https://github.com/sommer/veins/blob/veins-5.1/subprojects/veins_testsims/src/veins_testsims/traci/TraCITestApp.cc#L475 is more in line with what you wanted to do: give a new route to a vehicle.

Upvotes: 1

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