Jakub Smejkal, Martin Hubáček, Radim Kozák

Published May 27, 2020 © CC BY-SA

Hardwario non-invasive Heat Monitoring with Infra Grid

You can monitor heat on your production line or your air conditioning to detect overheating in your factory with the Infragrid module.

BeginnerProtip1 hour453

Hardwario non-invasive Heat Monitoring with Infra Grid

Things used in this project

Hardware components

HARDWARIO Core Module

HARDWARIO Infra Grid Module

USB-A to Micro-USB Cable

HARDWARIO Radio Dongle

Software apps and online services

HARDWARIO Playground

Story

Make your factory smarter with our IoT kit. With this project, you will be able to monitor the heat from some distance. We will be using some 3D printer as a showcase of our industrial machine, but it can be used on the classic factory machine as well.

It is non-invasive so you can deploy it almost anywhere in a short amount of time.

This can serve for some predictive maintenance, you can see if some engine is overheating or if the production line is too hot.

Visit other industrial projects with HARDWARIO on the projects page.

1. Build hardware

You will need the Infra Grid Module and also a Core Module to control it all. You will power it from the USB, just take the ordinary USB adapter that you use for your phone or something.

Just put the Infra Grid Module on top of the Core Module and you are done with the building.

2. Flash firmware

Download HARDWARIO Playground,
Flash firmware to the Core Module that was made for this project. You will find in the Playground by name: bcf-radio-infragrid-sensor
How to flash firmware is shown in the documentation.

3. Pair the Core Module

You need to pair the Core module with the Radio dongle that you are using, follow the instructions below to see how it is done.

Connect your USB Radio Dongle to your computer.
Open HARDWARIOPlayground
Click Start Pairing the LED on the dongle should start blinking
Connect the device that you want to pair into your computer or into the socket by USB and adapter
Wait for the device to appear in the table
It should add the device with the Alias: infragrid-sensor:0

After you did all this you can unplug the device from the computer and plug in the USB to the socket. The next steps will be done on the computer, so you can leave the device and focus on the NODE-Red.

4. Import flow

Open Node-RED in the Playground or Raspberry Pi and import this flow from the Attachments in the Menu -> Import -> Clipboard.

Do not forget to hit "Deploy" in the top right corner to apply the changes.

This flow does some transformations over the data and places it into the table and differentiates the heat by the colors

5. Test your device

Place the device over some engine or wherever you want to measure some heat, plug it in and watch the result in the HARDWARIO Playground Dashboard. You can see an example of the output down bellow.

Summary

Make work easier for your technicians, have real-time insight into what is happening in your machinery. It is simple to make and powerful.

You can make some adjustments to the code so it suits your needs and your machine needs.

Feel free to ask any questions about this project.

Visit HARWDARIO page on hackster.io for more interesting projects or go directly to their website
Go to HARDWARIO documentation to learn more about their modules and other possibilities of the platform.
Try more firmware from HARDWARIO Playground or write your own, it is easy to start.
Because everything is Open source you can get all firmware on GitHub, get some inspiration, and try to make your own applications.
Get your own HARDWARIO Hub to replace your computer in this project so you have always access to your applications.
Check out more applications that can be used with HARDWARIO in Integrations section.

Node-RED flow

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msg;","outputs":1,"noerr":0,"x":930,"y":460,"wires":[["3ca7e109.d42e6e"]]},{"id":"4e738869.b0e458","type":"ui_template","z":"8cba288e.042798","group":"27d52812.4e0d88","name":"","order":0,"width":"12","height":"12","format":"<table style=\"border-spacing:0\">\n<tr ng-repeat=\"row in msg.payload track by $index\">\n    <td style=\"width:20px;height:20px;display:block;float:left\" ng-repeat=\"col in row track by $index\" ng-style=\"{'background-color': col}\">\n        \n    </td>\n</tr>\n</table>\n    \n    ","storeOutMessages":true,"fwdInMessages":true,"templateScope":"local","x":1280,"y":460,"wires":[[]]},{"id":"78e1325c.52b5cc","type":"json","z":"8cba288e.042798","name":"","property":"payload","action":"","pretty":false,"x":770,"y":460,"wires":[["85d0868f.0344e8"]]},{"id":"3ca7e109.d42e6e","type":"function","z":"8cba288e.042798","name":"Array slicer","func":"var inputArray = [];\nvar array = [];\nvar outputArray = [];\n\nvar min = 400;\nvar max = -5;\n\nvar temperature;\n\nvar 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\"#20C800\", \"#20C800\", \"#28C800\", \"#28CC00\", \"#30CC00\", \"#30CC00\", \"#38CC00\", \"#38CC00\", \"#38CC00\", \"#40CC00\", \"#40CC00\", \"#48CC00\", \"#48D000\", \"#50D000\", \"#50D000\", \"#58D000\", \"#58D000\", \"#60D000\", \"#60D000\", \"#68D000\", \"#68D400\", \"#70D400\", \"#70D400\", \"#78D400\", \"#78D400\", \"#80D400\", \"#80D400\", \"#88D400\", \"#88D800\", \"#90D800\", \"#90D800\", \"#98D800\", \"#98D800\", \"#A0D800\", \"#A8D800\", \"#A8D800\", \"#B0DC00\", \"#B0DC00\", \"#B8DC00\", \"#B8DC00\", \"#C0DC00\", \"#C0DC00\", \"#C8DC00\", \"#C8DC00\", \"#D0DC00\", \"#D0E000\", \"#D8E000\", \"#D8DC00\", \"#D8D800\", \"#D8D400\", \"#D8D000\", \"#D8D000\", \"#E0CC00\", \"#E0C800\", \"#E0C400\", \"#E0C000\", \"#E0BC00\", \"#E0B800\", \"#E0B400\", \"#E0B000\", \"#E0AC00\", \"#E0A800\", \"#E0A400\", \"#E0A000\", \"#E09C00\", \"#E09800\", \"#E09400\", \"#E09000\", \"#E08C00\", \"#E88800\", \"#E88400\", \"#E88000\", \"#E87C00\", \"#E87800\", \"#E87400\", \"#E87000\", \"#E86C00\", 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(array[row2][col2] + array[row2 + 1][col2]) / 2;\n            }\n             else \n            {\n                temperature = (array[row2][col2] + array[row2][col2 + 1]) / 2;\n            }\n            colorIndex = Math.floor(map(Number(temperature), min, max, 0, 255));\n            outputArray[row][col] = colorMap[colorIndex];\n    }\n}\n\nmsg.payload = outputArray;\nreturn msg;\n\nfunction map(x, in_min, in_max, out_min, out_max)\n{\n  var val = (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;\n    if (val > out_max)\n    {\n        val = out_max;\n    }\n    if (val < out_min)\n    {\n        val = out_min;\n    }\n  return 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Hardwario non-invasive Heat Monitoring with Infra Grid