For some of you reading this, this may be the first time you’ve heard the term Building Health Monitoring Platform. If you’ve been by the lab in Chicago, or heard one of us speak in the last year or so, you hopefully know the term.
At CRT Labs we’ve been researching and developing a technology platform to enable real-time and historical analysis of a building’s health. At this point you might ask yourself what does “Building Health Monitoring Platform” mean exactly? Let me tell you what it means to us.
Residential and commercial buildings are complex organisms: they breathe, need energy to function and generally attempt to reach a point of homeostasis. You could view the energy needs and HVAC outputs as a simple form of metabolism. Understanding the sometimes complex relationships between air quality, energy usage and the occupants’ comfort levels requires monitoring many subsystems, as well as the perceived comfort of the occupants.
Rosetta Home is our attempt to quantify this data into meaningful feedback for the building owner or occupier. Most of the data is quantitative in its essence, while perceived comfort level is most definitely qualitative. Combining these data points to convey meaning is no small feat.
Let me give you a quick breakdown of the current subsystems we employ to enable this analysis.
- Indoor Environmental Quality (IEQ)
This is one of the most important aspects of a building’s health that is often overlooked. Excessive CO2 levels contribute to drowsiness and negatively impact work efficiency and general well-being in a building. Our Touchstone project is an open source hardware project led by our esteemed Architectural Engineer Akram Ali. We’ve tested dozens of sensors to create an affordable, efficient IEQ device. Besides just air quality we also look at other environmental factors such as noise levels and ambient light, hence the “Environmental” in the name, rather than just “Air” quality. All together we are monitoring 8 different variables.
- Relative Humidity
- VOC (Volatile Organic Compounds)
- Particulate Matter
- Barometric Pressure
- Light Intensity
- Sound Intensity
If you feel like digging through some source code and hardware designs, feel free to check out the project on our Github.
- Energy Monitoring
Through the use of Smart Meter Connected Devices and/or direct monitoring of the electrical system using a device such as the Neurio, we are able to gather real-time data on electrical usage for the whole building. To break that down even further we employ plug load monitors for high-draw appliances and systems. We are currently using WeMo Insights which also allows the system to control the plug load as well.
- HVAC Utilization
To monitor residential HVAC utilization we are using a nifty little thermostat called the Radio Thermostat. This WiFi enabled thermostat gives us local access (LAN) to all the information about HVAC runtimes and heat/cool cycles. The data we receive from the Touchstone allows the system to have complete control over the thermostat, which allows Rosetta Home to optimize HVAC runtimes to enhance comfort and reduce costs.
For commercial installations we are working on integrating BACnet and Modbus protocols to talk to the different commercial systems.
- Hyper-local Weather
Obviously, outdoor environmental conditions play a huge role in how buildings perform. Solar radiation, wind, temperature and humidity can drastically effect a building’s efficiency. In order to really understand a building’s envelope efficiency and solar potential, it is essential to know this data as close to home as possible – pun intended ;). Wind speed and wind direction can also help us determine external air quality issues that may otherwise go unseen. Rosetta Home works with consumer-level weather stations, as well as more professional weather monitoring systems such as the Vantage Pro2.
- Consumer app
In order to collect the qualitative data of occupants comfort we utilize the application that occupants will use to interact with their system in general. Through totally optional polls, we will attempt to extrapolate useful information about the occupants’ comfort and overall well-being while in the building. We are trying hard to make these as quick and unobtrusive as possible, while relaying important data points for analysis.
Great! This sounds amazing, you say. I want this for my building NOW! Where can I buy this amazing platform!
Don’t worry, it’s coming very soon. We hope to be handing out beta-tester units by the end of February. Let me explain what we’ve been pushing and tweaking in the final months before launch.
- Hardware is HARD
We’re working with several vendors to optimize the production process of building Touchstones. We’ve spent months optimizing the board itself, and now it’s time to optimize production. We just completed our first pseudo-production run at mHub with the help of Twisted Traces.
It went well, but we definitely need to automate more of the process, so we’re working through that now.
- IoT Security is easy… to do incorrectly
This is one that you CANNOT get wrong. Most people have heard of Mirai. It wreaked havoc on the Internet in 2017. We believe in consumers’ privacy as well as their security. We’ve worked hard to lock down all of our in-home systems as well as cloud infrastructure to be compliant with the best security practices around today. We’re currently finalizing our key security infrastructure.
- Understanding the data is important
We can create the best technology in the world, but if it’s totally unaccessible to our users, no one benefits. Our illustrious designer Joe Sullivan has put in a ton of hours along with our summer intern John O’Sullivan (yes it’s very confusing) to build a fantastic user interface to investigate the massive amount of data that’s generated by a building. Having quick views of a buildings health is important, but so are deep dives into historical data. Making these work together in a mobile friendly interface takes a lot of research and testing. We are deploying the first version of our interface over the next month, and will be looking for as much feedback as you are willing to give to help make it better and better.
So, in closing, Rosetta Home will be out in the wild at the end of February. Some of you are on our beta testers list, so look for more updates soon on how we will be distributing those systems. You can also help us by filling out a quick questionnaire.