blog.hvac.io
First Look at Haystack
http://blog.hvac.io/2014/12/08/first-look-at-haystack
First Look at Haystack. I recently saw a few people mentioning Haystack in a few BACnet circles and decided it was time for a little exploration. Little did I know how weird it would be. Here’s the short intro from haystack.org:. Let’s start with the mention of the. Can be resumed as this: Eventually, all our things (fridges, lights, toilets, toasters) will be accessible on the Internet. How can we make use of that? We standardize semantic data models and web services (). Tags System (Which Are Not Tags).
blog.hvac.io
Wacnet 1.1.7
http://blog.hvac.io/2015/02/25/wacnet-117
Wacnet 1.1.7. We just released a new version of Wacnet. You can download it here: Download Wacnet. If you are on the mailing list, you should already have received a direct download link. This release focuses on usability. You can now start the application by double-clicking on the jar file. Yay! Now that running the application with a double-click is viable, we must let the user know when the application is starting. A splash screen will do just that. Port Already Taken Error Message. We now make sure t...
blog.hvac.io
Wacnet 1.1.5
http://blog.hvac.io/2014/11/13/wacnet-115
Wacnet 1.1.5. We just released a new version of Wacnet. You can download it here: Download Wacnet. This version let the user configure a pause between each object in a network-wide scan. (Used mostly for Vigilia. We added this configuration because one of our customers was receiving alarms when running scans. Apparently, their workstation considered the device. If it didn’t answer in a very short time (less than a second). Blog comments powered by Disqus.
blog.hvac.io
Wacnet 1.1.4 and Video Tutorials
http://blog.hvac.io/2014/10/02/wacnet-114-and-video-tutorials
Wacnet 1.1.4 and Video Tutorials. Just a quick note to announce a new minor version of Wacnet. You can download it here: Download Wacnet. This version fixes a little bug that prevented the summary table to show the objects unit. I’ve also taken the time to make a few short videos showing how to start and configure Wacnet. Let me know if there’s something in particular you’d like me to cover in the next videos. Blog comments powered by Disqus.
blog.hvac.io
The Friction of Sharing
http://blog.hvac.io/2014/08/25/the-friction-of-sharing
The Friction of Sharing. The web is a fascinating place. One of the most interesting behaviour we can see is how various activities can be possible for years, but only really become widespread once they are. One obvious example is sharing videos. This was technically doable for many years before the Youtube explosion. Here are some of the ways one could share a video:. Setup an FTP server and ask the recipient to log in with a login/password. (Complex for both the author and the user.). The same friction...
blog.hvac.io
Introducing Copying and Archiving
http://blog.hvac.io/2014/08/14/introducing-copying-and-archiving
Introducing Copying and Archiving. We are happy to announce a new feature for all our Vigilia users: You can now create copies of your projects. As our current users know, when a given project has reached its capacity, it will delete the oldest logs when new ones are inserted. This is the behavior you would expect, as often you only need the last months/year of HVAC historical data. However, there are cases where you do want to keep the logs for a long time. There’s no link between the data of the 2 proj...
blog.hvac.io
Harmonized Timeseries
http://blog.hvac.io/2015/03/10/harmonized-timeseries
At scale, every little detail is there to get you. In this post, we describe why and how we harmonize the timeseries before using them. When trying to analyze timeseries, there’s few thing that one must be careful about. If you are dealing with big systems, chances are you will encounter all of them at the same time. Different time intervals;. Irregular time intervals;. Missing values (communication error, power outage). This is how our Timeseries tab ‘zooms-in’ on different time periods. Harmonized ...
blog.hvac.io
Network Discovery with Devices Ignoring WhoIs
http://blog.hvac.io/2015/01/11/network-discovery-with-devices-ignoring-whois
Network Discovery with Devices Ignoring WhoIs. Here’s a little something that happened to me and shows how incredibly powerful Wacnet’s REPL is when you need something that isn’t already programmed in the software. We recently were tasked to use Vigilia to record a subset of a BACnet network. The only thing we knew was that many devices were MS/TP, that the network was composed of multiple buildings, and that we had a few dozen devices to record with IDs between 20000 and 20999. I talked about my situati...
blog.hvac.io
SD card: Ubuntu Wacnet image
http://blog.hvac.io/2014/09/08/sd-card-ubuntu-wacnet-image
SD card: Ubuntu Wacnet image. We’ve just prepared a Ubuntu 12.04.4 and Wacnet 1.1.2 image and decided to make it available to everyone, for free. Here’s the download link: MK802iv Wacnet image. This SD card image (8GB) is to be used with the MK802iv miniature PC:. If you need admin power:. The PC will announce itself as HVAC. On the LAN, which makes it easy to find by looking on a router at the list of all connected devices. After a few seconds, you can go to http:/. By doing this, we make sure that nobo...