Quick navigation

Child pages (Children Display)

all	true
page	Simple Iot Tutorial

Panel

title	Goal

Anchor

	1
	1

In the previous tutorial we created a list of 2 sensors. In this tutorial we're going to create an organ which will make sensors for us and 2 two automates to handle this new list.

System architecture:

Panel

title	Requirements

To follow this tutorial you must have done the Basic Equipment Tutorial.

Panel

title	The automate model

Anchor

	2
	2

In this part we will create a new model, named an "automate", that will be in charge of a group of sensors. This model needs 2 attributes:

name: so we can create multiple automates without losing track of and identify them
sensors: an an array of the sensors the automate is in chargethat are managed by this automate

We're going to add an empty array named automates as property of the SensorListModel and create a model Automate which has a name and an array of sensors as with the two previously described attributes.

spinal-models/models.js

Code Block

language	js
theme	DJango
linenumbers	true

class SensorModel extends Model {
  constructor() {
    super();
    this.add_attr({
      id: 0,
      name: "",
      hydrometry: 0,
      temperature: 0,
      pressed: false
    });
  }
}
module.exports.SensorModel = SensorModel;

class SensorListModel extends Model {
  constructor() {
    super();
    this.add_attr({
      sensors: [],
      automates: []
    });
  }
}
module.exports.SensorListModel = SensorListModel;

// Automate model
class AutomateModel extends Model {
  constructor() {
    super();
    this.add_attr({
      name: "",
      sensors: []
    });
  }
}
module.exports.AutomateModel = AutomateModel;

Panel

title	The createSensor organ

Anchor

	3
	3

Before we can use our new model we're going to need sensors for them to handle.

The createSensor organ will create 10 virtual sensors in a new list stored as "Automate".

createSensor/index.js

Code Block

language	js
theme	DJango
linenumbers	true

// Requirements and connection
const spinalCore = require('spinal-core-connectorjs');
const models = require('../spinal-models/models.js');

console.log("Configuration Environment not found, using default config");
process.env.SPINALHUB_PORT = 7777;
process.env.SPINALHUB_IP = "127.0.0.1";
process.env.SPINAL_USER_ID = 168;
process.env.SPINAL_PASSWORD = "JHGgcz45JKilmzknzelf65ddDadggftIO98P";

const conn = spinalCore.connect(`http://${process.env.SPINAL_USER_ID}:${process.env.SPINAL_PASSWORD}@${process.env.SPINALHUB_IP}:${process.env.SPINALHUB_PORT}/`);

//  We load our automate
spinalCore.load(conn, "Automate", function (automate) {
  // callback success
}, function () {
  // callback error: We create a new list
  const list = new models.SensorListModel();
  spinalCore.store(conn, list, "Automate", function () {
    addItem(list);
  });
}
);

//  We add 10 new equipments to the list
function addItem(list) {
  for (let i = 0; i < 10; i++) {
    let item = new models.SensorModel();

    item.id.set(i);
    item.name.set("equipment" + i);
    item.hydrometry.set(Math.floor(Math.random() * 30));
    item.temperature.set(Math.floor(Math.random() * 100));
    list.sensors.push(item);
  }
}

You can test it to see if it is working fine.

A new list named "Automate" should have appeared in the admin UI, put it in the inspector.

You can see that the sensors array contains 10 sensor whereas the automate array is empty.

At this point in this tutorial our spinal system looks like this:

Panel

title	Simulate sensors with automates

Anchor

	4
	4

We are now going to create 2 automates. Each one will be in charge of 5 sensors from the list. Both will periodically choose one of their sensors and change its hydrometry and temperature.

Automate 1

automate1/index.js

Code Block

language	js
theme	DJango
linenumbers	true

// Requirements and connection
const spinalCore = require('spinal-core-connectorjs');
const models = require('../spinal-models/models.js');

console.log("Configuration Environment not found, using default config");
process.env.SPINALHUB_PORT = 7777;
process.env.SPINALHUB_IP = "127.0.0.1";
process.env.SPINAL_USER_ID = 168;
process.env.SPINAL_PASSWORD = "JHGgcz45JKilmzknzelf65ddDadggftIO98P";

const conn = spinalCore.connect(`http://${process.env.SPINAL_USER_ID}:${process.env.SPINAL_PASSWORD}@${process.env.SPINALHUB_IP}:${process.env.SPINALHUB_PORT}/`);

// Loading the list
spinalCore.load(conn, "Automate", function (list) {
// callback success: if the array of automates is empty we create a first automate, else we press the first automate
  if (list.automates.length < 1)
    addAutomate(list);
  press(list.automates[0]);
}, function () {
// callback error
});

// Adds an automate to the list and attributes him the first 5 equipments
function addAutomate(list) {
  var automate1 = new models.AutomateModel();

  automate1.name.set("automate0");
  for (let i = 0; i < 5; i++) {
    automate1.sensors.push(list.sensors[i]);
  }
  list.automates.push(automate1);
}

// Randomly selects a sensor in the list and changes its hydrometry and temperature
function press(automate) {
  let selectedEquipment = Math.floor(Math.random() * 5);
  const sensor = automate.sensors[selectedEquipment];
  let hydro = Math.floor(Math.random() * 100);
  let degrees = Math.floor(Math.random() * 30);

  sensor.hydrometry.set(hydro);
  sensor.temperature.set(degrees);

// Repeats every second
  setTimeout(function () {
    console.log("automate1: has been pressed");
    press(automate);
  }, 1000);
}

Automate 2

Automate2 will be almost identical to automate1 so I suggest you start by copying automate1.

Code Block

language	js
theme	DJango
linenumbers	true

// Requirements and connection
const spinalCore = require('spinal-core-connectorjs');
const models = require('../spinal-models/models.js');

console.log("Configuration Environment not found, using default config");
process.env.SPINALHUB_PORT = 7777;
process.env.SPINALHUB_IP = "127.0.0.1";
process.env.SPINAL_USER_ID = 168;
process.env.SPINAL_PASSWORD = "JHGgcz45JKilmzknzelf65ddDadggftIO98P";

const conn = spinalCore.connect(`http://${process.env.SPINAL_USER_ID}:${process.env.SPINAL_PASSWORD}@${process.env.SPINALHUB_IP}:${process.env.SPINALHUB_PORT}/`);

// Loading the list
spinalCore.load(conn, "Automate", function (list) {
  // callback success: if the array of automates is empty we create a first automate, else we press the first automate
  if (list.automates.length < 2)
    addAutomate(list);
  press(list.automates[1]);
}, function () {
  // callback error
});

// Adds an automate to the list and attributes him the first 5 sensors
function addAutomate(list) {
  var automate = new models.AutomateModel();

  automate.name.set("automate1");
  for (let i = 5; i < 10; i++) {
    automate.sensors.push(list.sensors[i]);
  }
  list.automates.push(automate);
}

// Randomly selects a sensor in the list and changes its hydrometry and temperature
function press(automate) {
  let selectedSensor = Math.floor(Math.random() * 5);
  const sensor = automate.sensors[selectedSensor];
  let hydro = Math.floor(Math.random() * 100);
  let degrees = Math.floor(Math.random() * 30);

  sensor.hydrometry.set(hydro);
  sensor.temperature.set(degrees);

  // Repeats every second
  setTimeout(function () {
    console.log("automate2: has been pressed");
    press(automate);
  }, 1000);
}

Panel

title	Test your system

Anchor

	5
	5

Don't forget to add all this new organs to your .apps.json if it isn't already done.

.apps.json

Code Block

language	js
theme	DJango
linenumbers	true

{
  "apps": [
    {
      "name": "spinal-core-hub",
      "script": "spinalhub.js",
      "cwd": "./nerve-center/"
    },
    {
      "name": "createSensor",
      "script": "index.js",
      "cwd": "./createSensor/"
    },
    {
      "name": "automate1",
      "script": "index.js",
      "cwd": "./automate1/"
    },
    {
      "name": "automate2",
      "script": "index.js",
      "cwd": "./automate2/"
    }
  ]
}

2 new automates with 5 sensors each should have appeared in your list. You can compare the sensors in the array and those in the automates to verify that they correspond.

Panel

title	Create warnings

Anchor

	6
	6

We now have 2 automates that change the data of sensors. Let's add analytic to the press function to catch those modifications.

We will change the press function in both so that when the hydrometry exceeds 70% or the temperature

automate1/index.js

Code Block

language	js
theme	DJango
linenumbers	true

function press(automate) {
  const selectedSensor = Math.floor(Math.random() * 5);
  const sensor = automate.sensors[selectedSensor];
  const hydro = Math.floor(Math.random() * 100);
  const degrees = Math.floor(Math.random() * 30);

  sensor.hydrometry.set(hydro);
  sensor.temperature.set(degrees);
  //  If the sensor's hydrometry or temperature are above certain value we send a message and press the sensor
  if (hydro > 70 || degrees > 20) {
    sensor.pressed.set(true);
    console.log("Alert: " + sensor.name.get() + " warning");
  } else
    // Else we release the sensor
    sensor.pressed.set(false);

  setTimeout(function () {
    console.log("automate1: has been pressed");
    press(automate);
  }, 1000);
}

automate2/index.js

Code Block

language	js
theme	DJango
linenumbers	true

function press(automate) {
    const selectedEquipment = Math.floor(Math.random() * 5);
    const sensor = automate.sensors[selectedEquipment];
    const hydro = Math.floor(Math.random() * 100);
    const degrees = Math.floor(Math.random() * 30);

    sensor.hydrometry.set(hydro);
    sensor.temperature.set(degrees);
    if (hydro > 70 || degrees > 20) {
        sensor.pressed.set(true);
        console.log("Alert: " + sensor.name.get() + " warning");
    } else
        sensor.pressed.set(false);

    setTimeout(function () {
        console.log("automate2: has been pressed");
        press(automate);
    }, 1000);
}

Now use pm2 restart and pm2 log to see when an equipment is in danger.

Code Block

language	bash
theme	DJango

~/button-system$ pm2 restart launch.config.js
~/button-system$ pm2 log

Conclusion

In this tutorial you learned how to:

Automatically create sensors using an organ
Created 2 automates to handle sensors
Made those automates display warnings if a problem occurs

This tutorial will be continued in Get your Automate in the viewer.

...

Versions Compared

Old Version 32

New Version 33

Key

Table of contents

Quick navigation

System architecture:

Automate 1

Automate 2

Conclusion

Page Comparison

Versions Compared

Old Version 32

New Version 33

Key

Table of contents

Quick navigation

System architecture:

Automate 1

Automate 2

Conclusion