Connected Vehicle Data Generator

Introduction

This is project is to generate simulated real-time MQTT message for the Connected Vehicle Demo project.

Configuration Guide

You could setup routes in this project, please check the web project for configurations of icon and picture of vehicles.

File config.js is where we write the configuration:

const appConfig = {
  //"trace","debug","info","warn","error"
  "logLevel": "debug",

  "mqtt": {
    brokerUrl: "tcp://localhost:1883",
    clientOptions: {
      clientId: "connected-vehicle-data-generator",
      username: "default",
      password: "default",
    }
  },

  "vehicles": [
    {
      route: "R41",       // must be the id of one route
      type: "HAUL",
      number: 30,
      speed: 50,         // km/hour
      IDPrefix: "HW",    // the id will be from IDPrefix+"001" to IDPrefix+"number"
      reportInterval: 2, // seconds
    },
    {
      route: "R41",
      type: "WATER",
      number: 5,
      speed: 25,
      IDPrefix: "WT",
      reportInterval: 3,
    },

  ],

  "routes": [
    {
      "id": "R41",
      "coordinates": [
        [119.670202,-23.359829],
        [119.6686864,-23.3599466],
        [119.6686864,-23.3599466],
        // .....
      ],
    },
  ],
}

• Modify the mqtt section to point to the same Solace broker with the web project
• vehicles is a list of vehicle group objects, for each vehicle group you need specify:
  • route: The ID of the route. This data generator will move the vehicles along this route
  • type: The web porject will show icon and picture of the vehicle based on it's type
  • number: How many vehicles will be simulated
  • speed: The unit of speed is km/h
  • IDPrefix: Each vehicle has a unique ID, start at IDPrefix+"001" to IDPrefix+"number". Don't use the same IDPrefix again in another group
  • reportInterval: The data generator will send out a MQTT message of each vehicle in this group on every reportInterval seconds.
• routes is a list of route object, a route object consists of a unique id and a coordinates
  • coordinates is a list of position, a position is an array of two numbers, this first is longitude the second is latitude, just like the coordinates in the LineString of the The GeoJSON Format

How to run the generator

1. run npm install first to install all dependencies
2. run node app.js to start the generator

> node app.js
Init 30 HAUL vehicles on route R41
Init 5 WATER vehicles on route R41
Init 20 HAUL vehicles on route R07
Init 5 WATER vehicles on route R07
Connected, ready to send mqtt messages ...
Start all 60 vehicles
Press Ctrl+C to exit ...

Build Docker Image

1. run docker build . -t ichen/data-generator:0.0.1 to build the Docker image

Build and Run Docker Container

1. run below command to create the container
2. run docker start ichen-data-generator to start the data generator

docker create --restart unless-stopped \
--mount type=bind,src=/home/ichen/mining-data-config.js,dst=/app/config.js \
--name=ichen-data-generator ichen/data-generator:0.0.1

Tools to generate routes

You could use Map Polygon/Polyline Tool to draw a path on the map, then copy the "coordinates" into the config file.