GUI (Graphical User Interface) or HMI (Human Man Interface) Supervisor Systems for BMS (Building Management Systems) and SCADA (Supervisory Control And Data Acquisition) can be very expensive. This course will provide a detailed yet easy to follow step by step guide on how to create bespoke professional level HMI using easily available and free software applications.
The course will teach you how to create and use a simulated graphical AHU (Air Handling Unit) with animated equipment items that responds to user inputs for Temperature Sensors and Setpoints to a Node-Red PID (Proportional, Integral and Differential) loop controller node running on a Raspberry Pi (RPi) mini computer. By altering the setpoint and various temperature sensors you will learn how the PID controller reacts in real-time to the various parameter changes recorded and displayed on the HMI chart trend logs. In this way you will learn the dark art of 'Tuning' a PID controller.
Although this is a simulated AHU system it is perfectly applicable to any installed building AHU system in conjunction with a typical BACnet or Modbus BMS controller. The AHU simulation includes Heating and Cooling PID control and energy saving strategies such as utilizing cool OAT (Outside Air Temperature) sensor in Cooling mode and warm RAT (Return Air Temperature) sensor recirculation in Heating mode.
In fact, as this is a very economical solution, it opens up a potentially huge market for converting 100s of thousands of existing SMCP's (Small, Medium, Commercial, Properties) from 'Dumb Thermostat' systems to 'Smart IoT' buildings, leading to potential energy savings of up to 30% for the property owners. A fantastic business opportunity for BMS System Integrators, tech entrepreneurs and facility management companies.
To learn how to make your system IoT, or you have limited or no knowledge of Node-Red or the RPi, I strongly recommend my Udemy published course, "Practical Home Automation Using Node-RED and Raspberry Pi."
Are you recommending the old, deprecated and unsupported, node-red-dashboard? I would have expected a new course to be using the new flowfuse dashboard.
I didn't realize it had been deprecated when I started the course!
Will definitely have a look at flowfuse as a replacement.
However, the old dashboard node is still very popular with ~23k downloads last week .. so a bit of life left in the old girl yet.
Saving $1000 starts with saving $15 while using the great resources of the forum here.
My microgrid dashboard works several month flawless including cascaded PID controllers and state machines (thanks for the support @dynamicdave ). I agree those matters are very installation specific. Therefore demands for such scripts are high and chances for selling a product what fits to any installation are low.
For this reason, NR is a good choice to start with. The availability of source code for library nodes always allows a look under the bonnet and helps for the decision to strip it down to the own simple version. Most challenging things were to understand Javascript and the NR basic concepts of the data links what are diffrent to parameter passing of functions and other languages. But there are already many free and nice YT videos. My script also uses the V1 dashboard what was no disadvantage up on now. I am waiting for the used radar charts to upgrade to V2 dashboard.
Possibly its better for you to post in one of the many solar forums where users have no NR experience but request such scripts while other authors fail to sell "their ready to use" scripts with much too complicated configuration for the individual installation.
It's perfectly reasonable to charge for a course you laboured over to produce.
I do think it's bad marketing to proclaim Free if you charge ÂŁ14.99 for it.
